Image from here

4 chords, 38ish songs. Better than a greatest hits compilation.

Title: 4 Chord Song

Artist: The Axis of Awesome

Genre: Comedy, Pop

Single: N/A

Album: All of them

Vintage: Constantly Updated

Kenn's Comment: AoA releases an updated version of this song with every album, adding new songs each time. Awesome song, in that they all work with that chord progression, which we have Pachabel to thank. All hail the grandfather of pop music! Though, the canon did use more than just 4 chords. And didn't need people who can't sing using audio-editing to make millions.