RTFA: http://www.wimp.com/guitartrio/

Three kids play one guitar and create an amazing song.

…the video is hard to embed, so you’ll have to click for it. However, it’s a really cool idea: one kid rides the low-E, one plays the lead on the higher strings, and the third taps out a beat on the body of the acoustic guitar. I happen to like Rusted Root, so I also think the song is a good one to work with.