Four Jacks and a Jill (1942)

Karanina "Nina" Novak (Anne Shirley), is befriended by Nifty (Ray Bolger), the leader of a four-piece orchestra, and in return, secures an engagement for them at the Little Aregal Cafe, with herself as the vocalist, by pretending she once knew the King Stephan VIII of Aregal back in the old country. Steve (Desi Arnaz) shows up pretending to be the King of Aregal, and complicates the growing romance between Nina and Nifty. When Steve runs off with Opal (June Havoc), the real King of Aregal (also Desi Arnaz) appears and complicates things again.