c'mon, everybody knows arms akimbo, mondegreen and petrichor. http://www.soundclick.com/petrichor

Random buzzfeed writer commits another fact fail - Albert Hammond and Mike Hazelwood were not members of the Hollies, who recorded their song “The Air That I Breathe”

Twist and Shout is an Isley Brothers song the Beatles covered. Come A Little Bit Closer (Jay and the American's version is the best known, I think) is another sibling (or maybe cousin) in this song family: http://www.youtube.com/watch?v=0d2b4XuAa80

How about Teenage Wasteland and You Ain't Seen Nothin Yet:
http://soundclick.com/share.cfm?id=9085924
and Hot Child in the City and You Sexy Thing:
http://soundclick.com/share.cfm?id=7949336
and (believe it or not) Best Friend's Girl and The Tide Is High:
http://soundclick.com/share.cfm?id=7949331

You must be joking, right? In the real world (not the comedy world) it was exactly the other way around - Lewis sued Parker, and won. It seems to be an act of amazing hubris - to me, the songs don't sound hugely the same, but his “Do You Believe In Love” was a total ripoff of ELO's “Sweet Talkin' Woman” - check out this mashup if you don't believe me - one fits right on top of the other: http://soundclick.com/share.cfm?id=9546660 (and they both sound better - as all songs do - with some Ooga Chakkas added).