EDM Mashup Includes: Wake Me Up - Avicii feat. Aloe Blacc Titanium - David Guetta feat. Sia Don't You Worry Child - Swedish House Mafia feat. John Martin Please SUBSCRIBE to our channel to stay informed of new music! Backtrack is: Soprano: Kara Lewis Alto: Carly Cantor Baritone: Brett Parker Bass: Andrew John Kim Beatboxing: Spencer Polanco (Spencer Beatbox) Additional Info: Producer, Recording Engineer, and Mastering Engineer: Andrew John Kim