The Axis of Awesome – performing songs with only four chords
http://www.youtube.com/watch?v=oOlDewpCfZQ
Video of the Day: The Axis of Awesome: 4 Chords 2011 Official Music Video
You might remember this comic trio from last year when they published the 4 Chords Song, a song incorporating every pop song in the last 40 years using the same four chords. They just released their music video, and added a bunch of new songs! Enjoy!