Sweetheart of the Fleet (1942)

Secretary Phoebe Weyms is in love with her ad-agency boss, Gordon Crouse, but he doesn't give her the time of day. To attract his attention, Phoebe contacts the Navy Recruiting Station, and offers to unmask at a gigantic recruiting rally, the two mystery girls who sing on the "Blind Date" radio program. Crouse is irate at this and tells her that the "Blind Date" girls, Brenda and Cobina, are clock-stoppingly ugly. Phoebe suggests that two of the agency models, Jerry Gilbert and Kitty Leslie, pose as the two singers while Brenda and Cobina do the actual singing behind a curtain. Brenda and Cobina agree--under the condition that they must be supplied with sailor boyfriends. Led to believe that B&C are Jerry and Kitty's voice teachers, the Navy commander sends sailors "Hambone" Skelly and "Daffy" Dill around to act as Brenda and Cobina's escorts. But Brenda and Cobina elope with their sailor escorts, and Phoebe is left with two masked "Blind Date" singers--who can't sing.