Rapper 50 Cent has become the latest celebrity to make a cameo appearance in The Simpsons.

Nancy Cartwright - the voice of Bart Simpson - told Radio 1 today that the singer was a dream to work with.

"That was a trip. He's going to hate me for saying this but he's a pussycat! The guy is really sweet. You should see the gold on him," said Cartwright. "But he was so nice to me and just really gentle. We had a lot of fun.

"He plays himself and Bart gets to do a rap song in it. It's a different one from 'Do the Bart Man'. It's very street, it's very street, if you will. Maybe I'm 50 Cents, he's 50 Cent and I'm 50 Cents."

50 Cent's appearance will be seen in an episode of the sixteenth season of the show, which begins airing this Autumn.