Hip-Hop Kings Unite

In a rare and likely final time, hip-hop had its biggest names on stage at one time. The four biggest names -- 50 Cent, Kanye West, Diddy and Jay-Z (also, included T.I.) appeared at 2007 Screamfest at Madison Square Garden. (More at MTV.com)

Here's a look at history.


Photo Credit: Getty/Scott Gries