Roger Ridley, a street musician in Santa Monica, California sang the vocals and guitar for the above cover of Stand By Me by Ben E. King. The track was then taken to Grandpa Elliot, a blind singer in Louisiana that added the vocals and the harmonica. Washboard Chaz then added metal percussion to the track.
The producers then sent the video and track to singers around Europe, South America, and Africa to add other instruments. The whole video and song was done with a laptop and a couple of microphones.
[via Gizmodo]