The Four Chords That Killed POP Music!

https://www.youtube.com/watch?v=nuGt-ZG39cU
https://www.youtube.com/watch?v=nuGt-ZG39cU
https://www.youtube.com/watch?v=3G6xY0mUgWk
https://www.youtube.com/watch?v=6rfaoMvpry4
https://www.youtube.com/watch?v=BhemoDjADSA
https://www.youtube.com/watch?v=YudByEASq1E
https://www.youtube.com/watch?v=KZVJCCE4D5o
https://www.youtube.com/watch?v=BvtLW1-KVic