@@aisyahizzatie1515 I found them early in my Kpop journey 2017-2018 so these songs are nostalgic for me and it’s so iconic how does no one know of them 🥹
@@cloudprince_ren0086 ahh i see, their songs are really great, right? 😭 i knew them during might just die era and it was actually pretty popular back then but idk what made them disband.. but ngl their concepts are always so unique and new
@@aisyahizzatie1515 from what I know a member was already enlisted and the rest were going in soon so they all just decided on disbanding rather then I guess leaving their fans alone for 2 years?
2 former members are producers/writers now. So if you're enjoying TxT's new comeback, thank History's Yijeong. Also you are missing out by not including Psycho performance mv.
Does anyone feel like that jump move in Might Just Die is insane cause for so long that was the most impressive dance move I’d seen in Kpop when I first watched this
The music video was already intense and had people talking, but I do remember everyone specifically freaking out over the move at the end (even more than the ab reveal)^.^ The behind the scenes of them learning it & them talking about injuries was a neat sobering look~ You know a dance move is dangerous when the blindfolds have to come off to do it in a blindfold dance practice!~
Dear Caitlin, you brought me to tears once again but this time not because of laughter. Don't get me wrong I love my 4th gen babies but there are no words to describe the way I miss my atheletic men with dangerous heartstopping choreos from HISTORY as well as from UNIQ, TOPPDOGG, SPEED to name a few. Happy to see in the comments of your subscribers how much HISTORY is still loved. Thank you for this as many call it throwback but for me their songs are timeless! Honestly thank you for this gift-reaction, Caitlin! Hope you'll have time to discover another old gen kpop group soon. XOXO
@@0becalp325 Yes, me too ! I watched it several times tonite after being reminded of it. Good times.... I went back and watched some of my old favorites from MBlaq, B.A.P., History, Infinite, Vixx, Crossgene, Hotshot, BlockB....OMG...I just went down memory lane and it was awesome.
OMG! I'm so happy Caitlin is reacting to this. Imma sound like an oldhead here but back in 2016 when Queen came out yall we lost our minds. I CLEARLY remember everyone on twitter going WHO ARE THESE GUYS?! and just listening to it on repeat. It was such a special month b/c it was also when NCT had debuted and everyone was releasing fire music. Ahh memories lol 🥰
I've been asking people to react to History for years! You should see the live stages with them in suits and glasses. They are such wonderful performers.
I was NOT expecting a History reaction. I love any time someone can appreciate History they were so criminally underrated and had such good songs. Psycho and What Am I To You are also phenomenal. Their choreo was always so incredible and I felt like they were putting out stuff that was unique for its time. Happy you could react to them!
this is the biggest surprise of this year to me, i cannot believe my favorite youtuber would be reacting to History, i am overwhelmed with happines and gratitude, i really love u caitlin.
Omg… I wasn’t expecting you to ever check out History 😭 That guy in the front (Kyungil) during the abs reveal actually once won an award for his abs lmao. They were disbanded too soon and in a really terrible way. Their company chose to disband the group (when they had even been on the up and up) and Kyungil, the leader, found out from posts online because he was in the military at the time and the company didn’t even notify him
Wow this was such a throwback, thanks for reacting to this, I loved History back then and I am not gonna say how many times I watched might just die performance’s cough… let’s just say I watched all the fan cams and dance practices as a group and individually 👀🤣
I can't believe it's been so long and I can still sing these songs! She loved this group very much and was very sad when they disbanded. I hope that at some point you can watch his other videos and listen to Blue Moon, my favorite song. Highly recommended.
omg i can't believe that you've reacted to history, they were one of my favorite and kpop really lost a gem when they disbanded :( i know that you're probably not going to react to more of them but if the chance arises i suggest you to react to the blue spring album (still one of my favorite kpop) and its title track "what am i to you" or their debut "dreamer" which is a musical masterpiece but let's be real whatever you might choose it's going to be great, these guys were amazing and had a true no-skip discography
dude I was so into History back in like 2015/2016. Their music is all so good. I highly recommend checking out the performance ver of Psycho (either in a video or on your own time) to really get the History experience
Thank you soooooooooooo much Caitilin....I feel so sorry for new kpop fans that they will never understand how older kpop Group were authentic and unique with their own style & music
Omg History 😭❤️ I got into kpop in 2017 and History was one of the first groups I discovered - because at that time everyone was heartbroken about their disbandment and I was curious what group caused all the crying on my newly discovered kpop part of twitter.. So I never got the chance to stan them as an active group 😔 But still fell in love with their music and "Queen" (iconic) was played on every kpop party I went to during my university years! It was amazing to see all the fans of different kpop groups coming together to go crazy on the dance floor the SECOND we've heard the intro to this song 😍
I'm so glad not everyone has forgotten about them. Usually with nugu groups once they disband people barely remember they even existed so it's nice to see a reaction to their music years after their disbandment
The way I wasn't expecting this group to be the subject of one of your reactions!!!! I was super attached to them. I cried when their disbandment was announced. I don't do that very often. Dreamer (their debut song) is still my absolute favorite from them and I think you'd really enjoy it! Psycho is also a must-watch. The MV is creepy and then the performance MV is something else. And then they were the first idols to come out with a blindfolded dance practice and they did it for Might Just Die. It was AMAZING.
THANK YOU CAITLIN! OMG I'm so happy to see reaction on History especially on these songs! I remember how members talking about this complicated choreography in Might Just Die, it seems like they were knee-bumping while jumping in the air. And the member with abs (Sung Kyong Il) trained so hard for those perfect 3 seconds of screen time😍. I love these guys, thank you for taking the time to this amazing band!
if you'd like to listen to more of some older kpop songs, those are my favs! knk - knock 4minute - crazy hotshot - take a shot/jelly madtown - new world/omgt uniq - eoeo (woodz was in this group!!) i could literally go on and on 😭 thanks for this reaction! love u
OMG! Thank you so much for reacting to History!!!! Love it....please continue this journey. They have some other cool songs and you hardly ever see anyone checking them out 🥰. Btw...one of the members (Yijeong) now goes under the producer name EL CAPITXN and has worked quite a bit with Big Hit artists. Yoongi also works with him, for example on D-2 and other stuff.
GURL. This brought back so many memories for me 😭 might just die was the first ever kpop song I memorized WORD FOR WORD back in 2017. like I watched that mv twice a day in my school classroom for a year straight I was OBSESSED 😭
I am sooo sad that I discovered them after disbandment. My bias is Kyungil (he was the leader and the one with the nice abs lol) tho and he has released so solo music over the past couple years
I love and miss History, they were underrated. They also had one of the craziest, most experimental sets of images in an art book (for the album 'Desire') that I've ever seen in Kpop. I totally agree that if you liked this stuff, "Psycho" (the basic MV or the Performance MV) should be on the list for next time. It was also a bit controversial and kind hot concept for a song/video.
Fun fact, after disbanding, the small guy (Yijeong), from this group became EL CAPITXN, a producer for Hybe, and has worked on songs for both BTS and TXT, amongst other artists like IU, Sunmi and ENHYPEN. It was very endearing watching his growth from this group to as he is now.
IS THIS REAL OMFG IM SO PHYSCHED AND I HAVENT STARTED THE VID YET- HISTORY was MajOrly underrated during their time firstly being their name - liiiike’ you search history -.- then history Kpop -.- Their music WOULD make everyone go crazy if they released it now
OMG....I died when I saw you reacted to this. History used to be one of my favorite groups. I was so upset when they disbanded. Their song "Psycho" was also amazing. As long as we are on this timeline, BAP...."One Shot" MV is amazing. The video tells a whole story and the song is awesome. Also.."This is War" by Mblaq. OMG...another great story video. I love the new music but miss this time period as well. Thank you for this reaction !!!!!
Believe me or not I just listened Queen just a few hours ago and glad that Caitlin discovered this song too!! Gosh the time where I feel vvvv deep to dokyun ╥﹏╥
OMG!!! History!!! You’d love their debut song ‘Dreamer’ it has really good harmonizing! And ‘what am I to you?’ Both really solid songs, they disbanded because the members had to do their military enlistments! 😭
"THE LYRICS..............................DO NO REQUIRE THAT" I fucking lost it lmao I clicked SO FAST when I saw that you'd reacted to HISTORY, this made my day
I actually requested this long ago. I thought she won't react to them which is fine coz Caitlin is a busy queen. Seeing this on my notice early in the morning almost made me jump off of my bed.
One thing I always remember about HISTORY was they almost always were touching each other in their choreo at some point back when it wasn't super common; so, it really sticks out in my mind^.^ Lots of hair or clothes grabbing~ They were one of the groups that I was saddest to hear about their disbanding. I agree with some of the other comments; if you wanna watch more from them in the future, I'd recommend Psycho (both music video and dance)~~~
As I said in the livestream, one of the members of history is now a producer at Hybe (or at least he works with their artists, such as TXT and BTS too). He goes by the name El Capitxn, and he actually wrote/composed these songs too. I was sooo happy when you reacted to them, it's really nice when groups that are not thaaat known or talked about get the recognition they always deserved. They were incredible.
Miss ma’am, I been a fan of kpop since 2009, and trust me when I say that I need you to get on board with U-kiss. 😊 specifically Stalker, and Quit Playing
![TBT Reaction To [MV] HISTORY(히스토리) _ Might Just Die(죽어버릴지도 몰라) (Performance ver.)](http://i.ytimg.com/vi/usfw8FUpqsI/mqdefault.jpg)
This one is a bit of a throwback but it’s sooooo good! 💕
Old kpop groups were perfectly talented but criminally underrated
Amen to that!
I’ve never heard anyone else talk about History so I screamed when I saw this
FOR REALLL
@@aisyahizzatie1515 I found them early in my Kpop journey 2017-2018 so these songs are nostalgic for me and it’s so iconic how does no one know of them 🥹
@@cloudprince_ren0086 ahh i see, their songs are really great, right? 😭 i knew them during might just die era and it was actually pretty popular back then but idk what made them disband.. but ngl their concepts are always so unique and new
@@aisyahizzatie1515 from what I know a member was already enlisted and the rest were going in soon so they all just decided on disbanding rather then I guess leaving their fans alone for 2 years?
@@cloudprince_ren0086 ohhh now i understand 😭 thank you for telling me
2 former members are producers/writers now. So if you're enjoying TxT's new comeback, thank History's Yijeong. Also you are missing out by not including Psycho performance mv.
Omg yes!!! I wish she did psycho too 😭😭😭😭
!!! WHAT!!! Yijeong worked on their comeback?? I loved that guy, that's so fun to hear omg
@@binch_babe yeah he does a fair amount of stuff for TxT and BTS under the name ×elcapitanx
YES! Psycho is a necessity!
THISSSSS
Does anyone feel like that jump move in Might Just Die is insane cause for so long that was the most impressive dance move I’d seen in Kpop when I first watched this
The music video was already intense and had people talking, but I do remember everyone specifically freaking out over the move at the end (even more than the ab reveal)^.^ The behind the scenes of them learning it & them talking about injuries was a neat sobering look~ You know a dance move is dangerous when the blindfolds have to come off to do it in a blindfold dance practice!~
NOOO WAY??? HISTORY??? omg I LOVE them! Was so sad when I realized I was too late to stan
Omg, Caitlin you're literally the best reaction channel
Dear Caitlin, you brought me to tears once again but this time not because of laughter. Don't get me wrong I love my 4th gen babies but there are no words to describe the way I miss my atheletic men with dangerous heartstopping choreos from HISTORY as well as from UNIQ, TOPPDOGG, SPEED to name a few. Happy to see in the comments of your subscribers how much HISTORY is still loved. Thank you for this as many call it throwback but for me their songs are timeless! Honestly thank you for this gift-reaction, Caitlin! Hope you'll have time to discover another old gen kpop group soon. XOXO
OMG, TOPP DOGG😭😭😭😭
I miss them 😭 Speed choreos were crazy,like Don't tease me and the ones with heelies. Topp Dogg deserved better
"Don't Tease Me" by Speed is the best choreo ever !!!
@tanasmom1969 when it came out i would rewatch it again and again and show it to friends
@@0becalp325 Yes, me too ! I watched it several times tonite after being reminded of it. Good times.... I went back and watched some of my old favorites from MBlaq, B.A.P., History, Infinite, Vixx, Crossgene, Hotshot, BlockB....OMG...I just went down memory lane and it was awesome.
OMG! I'm so happy Caitlin is reacting to this. Imma sound like an oldhead here but back in 2016 when Queen came out yall we lost our minds. I CLEARLY remember everyone on twitter going WHO ARE THESE GUYS?! and just listening to it on repeat. It was such a special month b/c it was also when NCT had debuted and everyone was releasing fire music. Ahh memories lol 🥰
Omg...I was right there with you ! 2016 was amazing !!!! It just went on and on after that too.
An amazing throwback group you could look into is Infinite. The Eye, Bad, the Chaser
OMG....YES !!!!! "The Eye" Choreography video, The "Bad" MV, also the "Back" performance video is AMAZING.
Omg I love History soo much. I wish they were still around. 'Queen' is one of my fave kpop songs of all time!
I've been asking people to react to History for years! You should see the live stages with them in suits and glasses. They are such wonderful performers.
I was NOT expecting a History reaction. I love any time someone can appreciate History they were so criminally underrated and had such good songs. Psycho and What Am I To You are also phenomenal. Their choreo was always so incredible and I felt like they were putting out stuff that was unique for its time. Happy you could react to them!
OMG HISTORY YESSSSSS.
I literally screamed. Queen is one of my favorite kpop songs of all time
this is the biggest surprise of this year to me, i cannot believe my favorite youtuber would be reacting to History, i am overwhelmed with happines and gratitude, i really love u caitlin.
Queen being one of my favourite kpop songs EVER! I'm just so happy for this!
Omg… I wasn’t expecting you to ever check out History 😭 That guy in the front (Kyungil) during the abs reveal actually once won an award for his abs lmao. They were disbanded too soon and in a really terrible way. Their company chose to disband the group (when they had even been on the up and up) and Kyungil, the leader, found out from posts online because he was in the military at the time and the company didn’t even notify him
OMG...that's so disrespectful !!! 😭
THIS IS SO UNEXPECTED ?!!!!! i used to love this group so much but then they disbanded and UGH I LOVE THEIR MUSIC
They were sooo iconic 😢😢
This song was epic, thanks for your hardwork 💙 I miss those days were every group music and concept were different and unique.
When I tell you how underrated queen is. My. God. I have been listening to this song for years. And it does not get old
Might just die is still in my playlist rent free, such a masterpiece
OMFG NO WAYYYY YOU REACTED TO HISTORY i miss them so mucchhhh tysm for the reaction!!
Wow this was such a throwback, thanks for reacting to this, I loved History back then and I am not gonna say how many times I watched might just die performance’s cough… let’s just say I watched all the fan cams and dance practices as a group and individually 👀🤣
OMG thank u for reacting to them!! their song "what am i to you?" and "dreamer" are really good too btw
Might Just Die is iconic
I can't believe it's been so long and I can still sing these songs! She loved this group very much and was very sad when they disbanded. I hope that at some point you can watch his other videos and listen to Blue Moon, my favorite song. Highly recommended.
omg i can't believe that you've reacted to history, they were one of my favorite and kpop really lost a gem when they disbanded :( i know that you're probably not going to react to more of them but if the chance arises i suggest you to react to the blue spring album (still one of my favorite kpop) and its title track "what am i to you" or their debut "dreamer" which is a musical masterpiece but let's be real whatever you might choose it's going to be great, these guys were amazing and had a true no-skip discography
dude I was so into History back in like 2015/2016. Their music is all so good. I highly recommend checking out the performance ver of Psycho (either in a video or on your own time) to really get the History experience
I really had to read multiple times because omg History is soooo underrated it's crazy
Thank you soooooooooooo much Caitilin....I feel so sorry for new kpop fans that they will never understand how older kpop Group were authentic and unique with their own style & music
Omg History 😭❤️
I got into kpop in 2017 and History was one of the first groups I discovered - because at that time everyone was heartbroken about their disbandment and I was curious what group caused all the crying on my newly discovered kpop part of twitter.. So I never got the chance to stan them as an active group 😔
But still fell in love with their music and "Queen" (iconic) was played on every kpop party I went to during my university years! It was amazing to see all the fans of different kpop groups coming together to go crazy on the dance floor the SECOND we've heard the intro to this song 😍
omggg thank you for reacting to this amazing group. When I first got into kpop i was soooo obsessed with Might Just Die, this song is iconic
I'm so glad not everyone has forgotten about them. Usually with nugu groups once they disband people barely remember they even existed so it's nice to see a reaction to their music years after their disbandment
Queen is still one of my all favorite songs thanks for the reaction
The way I wasn't expecting this group to be the subject of one of your reactions!!!! I was super attached to them. I cried when their disbandment was announced. I don't do that very often. Dreamer (their debut song) is still my absolute favorite from them and I think you'd really enjoy it! Psycho is also a must-watch. The MV is creepy and then the performance MV is something else. And then they were the first idols to come out with a blindfolded dance practice and they did it for Might Just Die. It was AMAZING.
Queen is such a BANGER
GOD I MISS THEM SO MUCH thank you for checking them out!!!
THANK YOU CAITLIN! OMG I'm so happy to see reaction on History especially on these songs! I remember how members talking about this complicated choreography in Might Just Die, it seems like they were knee-bumping while jumping in the air. And the member with abs (Sung Kyong Il) trained so hard for those perfect 3 seconds of screen time😍. I love these guys, thank you for taking the time to this amazing band!
if you'd like to listen to more of some older kpop songs, those are my favs!
knk - knock
4minute - crazy
hotshot - take a shot/jelly
madtown - new world/omgt
uniq - eoeo (woodz was in this group!!)
i could literally go on and on 😭
thanks for this reaction! love u
OMG...yes to all these songs !!! I miss these days...you forgot BAP though.
YES IMO Queen is one of the best Kpop songs of all time. I LOVE that song, and I LOVE History!!!!
Loved this so much. I love History so much, so I am happy you enjoyed the songs you heard.
So glad you reacted to History! I hope you check out TVXQ someday. I think you will love their vocals and musicality.
fun fact one of the previous members of history produces with bts sometimes under the name EL CAPITXN
might just die is a VIBE. the drama, the turns in the music....... i miss 2012-2015 so much. we used to be a proper country
OMG! Thank you so much for reacting to History!!!! Love it....please continue this journey. They have some other cool songs and you hardly ever see anyone checking them out 🥰. Btw...one of the members (Yijeong) now goes under the producer name EL CAPITXN and has worked quite a bit with Big Hit artists. Yoongi also works with him, for example on D-2 and other stuff.
Thank you so much for reacting to History. I love these boys so much 🩵🩵
OH MY GOD ITS BEEN SO LONG SINCE I SAW SOMEONE REACT TO HISTORY
GURL. This brought back so many memories for me 😭 might just die was the first ever kpop song I memorized WORD FOR WORD back in 2017. like I watched that mv twice a day in my school classroom for a year straight I was OBSESSED 😭
The throw back ! I still have them on my kpop playlist!
I’m so glad and happy you liked them! That was my first ever request for any reactor I watch 😂😅
I am sooo sad that I discovered them after disbandment. My bias is Kyungil (he was the leader and the one with the nice abs lol) tho and he has released so solo music over the past couple years
I love and miss History, they were underrated. They also had one of the craziest, most experimental sets of images in an art book (for the album 'Desire') that I've ever seen in Kpop. I totally agree that if you liked this stuff, "Psycho" (the basic MV or the Performance MV) should be on the list for next time. It was also a bit controversial and kind hot concept for a song/video.
WHA~AAAT????? HISTORY REACTION? GIRL- NOW YOU ATE SO MUCH!! HISTORY KINGS-- oh btw their song "Psycho' is SO ICONIC you have to react!
Fun fact, after disbanding, the small guy (Yijeong), from this group became EL CAPITXN, a producer for Hybe, and has worked on songs for both BTS and TXT, amongst other artists like IU, Sunmi and ENHYPEN.
It was very endearing watching his growth from this group to as he is now.
History ♡
I'm so in love with this group even few years later... ! I'm so happy to see you reacting to them omg
I so happy this moment finally came
OMG you brang back memories I forgot I had ! I used to listen to Queen everyday when the song came out
their debut is soooooo underrated
Ahhhhh yessss History! Such a varied discog, but all fabulous
Rap/Dance breakdown part still gives me goosebumps.
OMFG SOMEONE REACTED AND KNOWS HISTORY !!??
GIRL YOUR TASTE IS IMMACULATE FOR THIS ONE
OMG. History has LONG been one of my favorites! So excited to see someone reacting to them again ❤❤❤
omg might just die had the whole kpop fandom in a death grip when it came out TSGGDHS what a nostalgia trip
Dang talk about a throwback 😂 I remember when they debuted, wish they got more attention though 😔
omg i didn't thought you will react to this T^T queen is so iconic as hell! thank you for this caitlin!! love lots
This brought a lot of memorieesss from 2015 omgggg I'm glad you reacted to History!!
Oh my god yeeeeesssss. I'm so happy seeing the reaction to History 🥰🥰
IS THIS REAL OMFG IM SO PHYSCHED AND I HAVENT STARTED THE VID YET-
HISTORY was MajOrly underrated during their time firstly being their name - liiiike’ you search history -.- then history Kpop -.-
Their music WOULD make everyone go crazy if they released it now
Their debut song is still my favorite! Such a different sound. "Dreamer"
OMG! I miss them so much! 💜 Thank you for your reaction video over them.
OMG....I died when I saw you reacted to this. History used to be one of my favorite groups. I was so upset when they disbanded. Their song "Psycho" was also amazing. As long as we are on this timeline, BAP...."One Shot" MV is amazing. The video tells a whole story and the song is awesome. Also.."This is War" by Mblaq. OMG...another great story video. I love the new music but miss this time period as well. Thank you for this reaction !!!!!
this made me so excited!!! I miss history so much. thank you so much for reacting to my boys 😭
Believe me or not I just listened Queen just a few hours ago and glad that Caitlin discovered this song too!! Gosh the time where I feel vvvv deep to dokyun ╥﹏╥
HISTORY??? oh my god i miss them wow
OMG!!! History!!! You’d love their debut song ‘Dreamer’ it has really good harmonizing! And ‘what am I to you?’ Both really solid songs, they disbanded because the members had to do their military enlistments! 😭
if these two were a lot for you, their mv for Psycho will throw you overboard. it's so good.
YES...so true
OMFG, I literally did not expect you ever watching one of their videos, but I love it ❤ They have such good songs 🤯
I remember when they disbanded the very next day I discovered might just die... I almost cried myself to sleep that day
omg?? i was just thinking about History the other day
HISTORY!!!! I found this group recently too and they’re so ridiculously good. Please react to Psycho next!!
This is so random. I loved listening to Queen by History when it came out. Cant remember the last time i listened to it. Still slaps!
No me esperaba esta reacción, increíble
"THE LYRICS..............................DO NO REQUIRE THAT"
I fucking lost it lmao
I clicked SO FAST when I saw that you'd reacted to HISTORY, this made my day
Now that's a group i haven't heard of in a while... thanks for checking them out !!
I actually requested this long ago. I thought she won't react to them which is fine coz Caitlin is a busy queen. Seeing this on my notice early in the morning almost made me jump off of my bed.
One thing I always remember about HISTORY was they almost always were touching each other in their choreo at some point back when it wasn't super common; so, it really sticks out in my mind^.^ Lots of hair or clothes grabbing~
They were one of the groups that I was saddest to hear about their disbanding. I agree with some of the other comments; if you wanna watch more from them in the future, I'd recommend Psycho (both music video and dance)~~~
history was such a good group! im glad you got to react to them :) you should check out their songs "Psycho" and "What am I to You" next hehehe
As I said in the livestream, one of the members of history is now a producer at Hybe (or at least he works with their artists, such as TXT and BTS too). He goes by the name El Capitxn, and he actually wrote/composed these songs too.
I was sooo happy when you reacted to them, it's really nice when groups that are not thaaat known or talked about get the recognition they always deserved. They were incredible.
Omg I miss history so much man
Omg, you really checked the history. I loved them at the time so much and you are right they choreography didn't meet the lyrics at all
the legendary abs of kyungil
I cant remember his name, but the one in the center with the high def abs was the leader...
no way! You react to this😭😭 one of my fav group but sadly they didn’t really got the recognition as they deserved.
I CANT WATCH THIS NOW BUT IVE BEEN WAITING FOR THIS ONE!! I have to watch it after work!
I was waiting for her to react to the iconic jump! It did not disappoint 😂🔥🔥
WOOOOW HISTORY!!!!
I miss History so much!!!
Miss ma’am, I been a fan of kpop since 2009, and trust me when I say that I need you to get on board with U-kiss. 😊 specifically Stalker, and Quit Playing
Still have queen on my daily Playlist. That song goes hard
omg if you loved history, you would loveeeee B.A.P, super duper talented boys, KIngs of kpop