Revelation Avenue roar straight into the semi-finals! | Britain's Got Talent 2015

See more from Britain's Got Talent at itv.com/talent
Think you know gospel? You haven't heard Revelation Avenue!
This 12-piece choir from East London bring the house down with their rousing rendition of Roar by Katy Perry, bagging themselves a spot in the live shows when Amanda presses the golden buzzer.
SUBSCRIBE: bit.ly/BGTsub
Facebook: / bgt
Twitter: / bgt