Petey Wheatstraw (1977)

Petey Wheatstraw (1977) aka Petey Wheatstraw, the Devil's Son-In-Law is a Blaxploitation film written by Cliff Roquemore, starring popular Blaxploitation genre comedian Rudy Ray Moore, along with Jimmy Lynch, Leroy Daniels, Ernest Mayhand, and Ebony Wright. It is typical of Moore's other films Dolemite and The Human Tornado from the same era, in that Rudy Ray Moore rhymes nearly every sentence in the movie with the next one.

More at Wikipedia.