Gotye - Somebodies: A YouTube Orchestra

Gotye recreated Somebodies: A YouTube Orchestra, a music video includes a bunch of fan-made covers and parodies...
"All audio and video in Somebodies is from the YouTube user videos featured, each of them a cover or parody of Somebody That I Used To Know. No extra sounds were added to the mix, but I used some EQ, filtering, pitch-shifting and time-stretching to make the music."