In this parody of the Broadway musical "Damn Yankees," Jack Benny dreams he sells his soul to the Devil for a chance to play at Carnegie Hall. Jack gets his wish, but the conductor of his symphony orchestra turns out to be Spike Jones - who sabotages Jack's performance at every turn.
Jack panics when Rochester informs him that his Maxwell automobile has been stolen from his garage and they immediately race to the opulent Beverly Hills police station where the dispatcher plays Elvis Presley and Lawrence Welk records between making police calls. The police discover the crooks have returned the car and apprehend one of the perpetrators who broke his toe kicking the car's tire.
Jack ought to be suspicious when his porter in the Rome airport speaks in a Scottish burr and looks like a Greek god. In Jack's hotel suite he hears a magnificent male opera singer in another room, so the Svengali signs the puzzled amateur up to conquer America.
Jack makes sure Parisians remember him: he boasts to anyone he can corner that he drives a garbage truck. That's how an under-tipped hotel employee translates "star of stage, screen and television" for Jack. A garbageman compatriot is delighted to give Jack & Mary a free ride in his truck, while Maurice Chevalier takes them nightclubbing.
Jack fondly recalls himself as a handsome, high-spending dandy who had to gallantly fight off constant female attention, when he's asked how he met long-time girlfriend Mary Livingstone. But Jack resists attending a reunion with Mary's former co-workers at a May Company department store in L.A., where she met Jack in 1932, as they remember it very differently - especially the crucial purchase of an engagement ring. Rochester caters Mary's reunion, and can't help rolling his eyes at Jack's unbelievable recollection.