Oz: Well, other bands know more than three chords. Your professional bands can play up to six, sometimes seven completely different chords.
Devon: That's just, like, fruity jazz bands.
Oh, Dingoes Ate My Baby. Your problem is that you don't know four chords.
Axis of Awesome/Journey/James Blunt/Alphaville/Jazon Mraz/come on, people
I, V, vi, IV. There's your career; don't forget to thank me in your liner notes. (You too, Johann Pachelbel).