From Rocklopedia Fakebandica
The Simpsons (first aired 13 February 2005). Rap artist playing the Springfield Murder 4 Life rap concert. After he is forbidden to go to the concert, Bart sneaks out of the house and even gets onstage and raps a bit. But when he gets back home, he finds that his folks have discovered his absence, so he fakes his own kidnapping. Real rapper 50 Cent has a cameo as himself, but doesn't play the concert. Other rappers at the concert who are just glimpsed in the tv commercial for it are: Da Glock Pointers, Queen Booty Shaker, and MC Champagne Millionaire.