It was the worst mass shooting in U.S. history, and now we know exactly how it happened.
[Image via AP Images.]
Not only was he the host- he was also one of the musical acts!
Ch-ch-check out the video (above) to see the rapper break it down with Travis Barker, Tom Morello, Chuck D, and DJ Z-Trip!
His Mama must have told him to knock us out, because this performance definitely did!