Minnie the Moocher defined Betty's character as a teenager of a modern era, at odds with the old world ways of her parents. In the cartoon, after a disagreement with her parents, Betty runs away from home, accompanied by her boyfriend Bimbo, only to find themselves in a haunted cave. A ghostly walrus (rotoscoped from live-action footage of Calloway), sings Calloway's famous song "Minnie the Moocher", accompanied by a whole troupe of other ghosts and skeletons. This haunting performance sends the frightened Betty and Bimbo back to the safety of "home sweet home".