The show's theme was sung by Phoebe Snow in the first season. It was sung by from season's two through five was sung by Aretha Franklin. In the final season, it was sung by Boyz II Men.
Whitley Marion Gilbert Wayne:
Sorry Homey, Whitley don't play that!
Throughout the course of the series, Whitley's talents go back and forth between being an accomplished singer/dancer and having little to no singing/dancing skills at all.