Something a bit different for you. Hey just listen to this.
Axis of Awesome is an modern day Australian comedy band consisting of Jordan Raskopoulos, Lee Naimo and Benny Davis. The trio cover a wide variety of performance styles, and perform a combination of original material and pop parodieb and they have just dropped a bomshell in the music world.
Here they prove beyond doubt that popular music for the last 40 years is based on just 4 simple chords.
Have a listen to these 40 songs. Amazing.