I love Justin Timberlake, I'm psyched for The Social Network and the Roots might be one of the sickest bands of all time (Philly sons, holla!).
Thanks to Justin promoting his new movie, we got this gem of a rap medley from his appearance on Jimmy Fallon. It's already gone way viral but it's just too killer to not post here.
Timberlake & Fallon - "The History of Rap"