The self-dubbed 'Indi Beach Ska' group, Walk off the Earth have posted up an impressive cover of Gotye's "Somebody That I Used to Know". All five members of the Ontario band find a way to join in on the performance while they collectively only use one guitar. Yes, somewhat gimmicky in a viral video way, but a good watch nonetheless. Check out the clip below. The original track is off the Australian musician's third studio album, Making Mirrors, which dropped in the U.S. last month via Samples 'N' Seconds.