Famed World War II pin-up girl Betty Grable stars as Lorry, the most popular girl at the USO in a small Midwestern town. En route to a new job in Washington D.C., Lorry, a secretary, takes a detour to New York, where she and a friend crash a ritzy nightclub, and Lorry pretends to be a Broadway star. This provides a backdrop for lavish production numbers, with Grable in gorgeous gowns showing her glorious gems. Comic actors Martha Raye and Joe E. Brown fill out the cast, joined by the swing orchestra of Charlie Spivak and the Stardusters singing group.
A secretary visits a U.S.O. canteen and falls in love with a sailor. She pretends to be a Broadway star so she can be near the sailor and a U.S.O. performance leads her to real stardom.