I Knew You Were Trouble - WALK OFF THE EARTH Feat. KRNFX

We loooove these kinds of vids - a cappellas! Truly awesome vocals and sounds.  No instruments required...

Walk Off the Earth goes vocals-only in their latest viral cover.







Walk off the Earth hooked up with KRNFX for this 'a cappella - Beatbox' version of Taylor Swift's hit "I Knew You Were Trouble".

Every sound in this video is made by a human mouth!