Betty Boop: Minnie The Moocher

Betty Boop: Minnie The Moocher (1932)

Minnie the Moocheris a Betty Boop cartoon produced by Fleischer Studios.
It opens with a live action sequence of Cab Calloway and his orchestra performing an instrumental rendition of "St. James Infirmary". Then Betty Boop gets into a fight with her strict, parents, runs away from home with her friend Bimbo, and sings excerpts of the Harry Von Tilzer song "They Always Pick on Me" (1911) and the song "Mean to Me" (1929).

Betty and Bimbo end up in a cave where a walrus, with Cab Calloway's voice, sings "Minnie the Moocher" and then spooky shenanigans ensue with ghosts, goblins, etc. scaring her back home