Brad Pitt has reportedly signed on to make a hilarious cameo in the '21 Jump Street' sequel.
A source told PerezHilton.com that the scene is very funny and the guys had a great time doing it.
The source added that the 50-year-old actor was a great sport and the producers were thrilled that he took part.
'22 Jump Street' reunites Channing Tatum and Jonah Hill as police officers, who go undercover to investigate a drug ring, and Pitt will reportedly play himself as a university librarian.
