The Late Movies: Guess the Theme

By Mark Arminio

Tonight for the Late Movies, I'm trying something a bit different. Below is a collection of songs all with a common theme. In the comments, leave your best guess as to what that theme is. Winner gets something special...my undying praise and adoration. Good luck!
Cheap Trick - I Want You To Want Me
Jason Mraz - Too Much Food
Janis Joplin - Mercedes Benz
R. Kelly - World's Greatest
Rage Against The Machine - Renegades Of Funk
Gin Blossoms - Hey Jealousy
Bruno Mars - The Lazy Song