When Kay Kyser and his band, including singer Georgia Carroll, return from a long USO tour, the exhausted musicians look forward to their vacation, while Georgia plans her upcoming wedding to an Army officer. Their publicist, Charlotte Barton, does not give them time to rest, however, for she immediately takes them to the Carver shipyards. Despite the band's grumbling, they put on a good show, and Kay is entranced by the singing of Julie Carver, the daughter of Phineas J. Carver, whom Kay mistakenly assumes is the owner of the shipyard. Anxious to be married, Georgia urges Kay to replace her with Julie, but Kay mysteriously declines. On his way back to the hotel, Kay meets an old chum, Tom Gordon, the newspaper editor in Kay's hometown of Rocky Mount, North Carolina. Tom asks Kay to return home to put on a bond rally, so that Rocky Mount can buy a destroyer. Carver suggests holding the show in New York, where they can raise enough money for a cruiser, not just a destroyer, and Kay tries to trick the band members into agreeing. They see through his scheme, but as they are stuck in New York due to transportation shortages, acquiesce. Georgia is annoyed at having to postpone her wedding, however, and during the show, arranges for Julie to substitute for her. Julie is a big hit, much to the delight of her father and the chagrin of her wealthy, snobbish relatives. Kay is furious about the trick and yells at Julie for trying to ruin the show. When Georgia questions him about why he is refusing to hire Julie, he states that as a rich girl, she would have no commitment to a real career. Georgia passes on the information to Julie and Phineas, unaware that they are only pretending to be rich to make a good impression on Kay. In reality, they are the poor Carvers and are continually borrowing from their relations. Kay then travels to Rocky Mount, where the townsfolk hold a banquet in his honor. During the festivities, however, Kay learns that because the bonds from the New York show were sold in New York, they cannot be credited to Rocky Mount. Devastated by the news, Kay schemes to get the band to his hometown for another show by sending them urgent telegrams that lead them to believe that he is on his death bed. Again, they quickly see through his ruse, but agree to put on the show as they are already in Rocky Mount. The bond sales do not go well though, and it does not look as if there will be enough for a destroyer until Julie and Phineas arrive. Believing that he can get Phineas to purchase the required amount of bonds, Kay gives the singing job to Julie. She goes out with him that night in order to obtain a contract, but the moonlight works its magic and the couple fall in love. Unable to deceive him any longer, Julie tells Kay the truth about her finances and tearfully runs off with Phineas the next morning. Phineas has a plan of his own though, and summons his relatives to Rocky Mount. That night, as Kay puts on the show, Phineas blackmails his relatives into buying enough bonds so that the town can obtain its destroyer. Julie goes to the auditorium to present the check to Kay, who quickly reconciles with her and shares the good news with the crowd.