Why "Emotions" by Mariah Carey Is One Of The Hardest Songs To Sing EVER!

Also Mariah has sung this so many times on tour and on tv, so major props and respect to her!
Non-stop phrased upper belts, riffs and runs, low notes and of course ... these WHISTLES!
This song is truly a killer!
I hope you'll enjoy the video! Thank you for watching!