Boy What A Girl

1947. From IMDb:
Two small-time (aspiring to be big-time) producers are trying to convince a Chicago businessman to finance half of their show, while the other half is to be financed by a mysterious Mme. Deborah. But when Madame Deborah is not on hand to meet the money-man from Chicago, an ex-prizefighter is dressed to pose as her. Music and dancing provided by Deek Watson and His Brown Dots, 'Big' Sid Catlett and his band, and Ann Cornell and the International Jitterbugs. Drummer Gene Krupa has a drumming cameo.