[Crazy]

Jay Z (prod Dj Danger Mouse) - Encore

Incase you don't know, this is from the Grey Album, which is Jay-Z's Black Album mixed with samples from the Beatle's White Album. Made infamous through Wildstang's teaser this year, this is one of the songs I kept listening to right before 461 hit the field for finals.

EDIT: Baj is correct, Eye of the Tiger, and the Rocky theme are neccasary. Oh, and can't forget Kool and the Gang - Jungle Boogie.