YTVotD, musical edition

Have you ever wondered why so many pop songs sound familiar? Or feel like you subconsciously recognize that song on the radio but don't know how?  Australian comedy band "Axis of Awesome" has this pretty, well, awesome skit to demonstrate to their audience that pretty much every pop song ever is really just based on the same four chords, played over and over in order.  The songs are labeled on-screen, but it helps a lot if you have a reasonable knowledge of bad pop songs going into it to better enjoy the mockery. Well done guys, despite the fact that it kind of makes me want to vomit. (Warning, one curse word at 4:58, so NSFW or sensitive ears)