The Fresh Prince of Bel-Air - Season 1, Episode 6: Soundtracks

Carlton sings while driving the car to Palm Springs (likely practice for his glee club)

Will tries to cheer up Carlton in jail by having them singing it call/response. Suddenly the felon in their cell finishes the song in an operatic baritone

Bob starts singing this immediately after finishing 'Go Down Moses'

Bob is still singing. Will applauds

Bob sings after Will and Carlton have confessed

Bob sings this in the cell as Will and Carlton leave the station