Nightclub comique Hap Smith prend l'identité d'un autre soldat, afin qu'il puisse visiter des bases militaires dans une revue avec son ex-partenaire Chuck Allen.
Bandleader Kay Kyser takes his troupe of nutty musicians, goofball comics and pretty girl singers on a tour around the world to entertain the troops during World War II.
Pour sauver son maitre, Mr Drake, de la ruine, Mike, son valet, imagine un stratagème. Il fait passer Millie, une servante, pour la fille de Drake, ce qui lui permet de se rendre au bal des debutantes pour séduire un riche héritier. Mais Millie, amoureuse de Mike, échoue.
Danny has been in the army for 4 years, yet all he thinks about is Brooklyn and how great it is. When he returns after the war, he soon finds that Brooklyn is not so nice after all. He is able to share a place with Nick, the janitor of his old High School, and get a job as a singer in a music store. He also meets Leo, a talented pianist and his teacher Anne, whose dream is to singing Opera. When Jamie arrives from England, Danny tries to show him the Brooklyn experience and help him compose modern swing music. Together, these four also try to help Leo get the Brooklyn Music scholarship.
Joan Terry, from Kansas City, comes to New York to get a job on the stage. But until she finds an opportunity, she stays at a boarding house where other talent is also waiting. To get a better chance, the people there decide to build a talent pool, where the person with the most chances for a job gets the full support, trying to get jobs for the others there too - and Joan is chosen to do that. But this is not so easy when her fiance is trying to keep her away from the stage...
Soldier Johnny Grey is engaged to marry singer Mapy Cortes, but his plans go awry when he learns that he is the heir to $100,000 from his great-grandfather -- a bequest that comes with a catch: before claiming the money, Johnny must marry a descendant of his great-grandfather's Civil War enemy, General Havelock-Allen. Not wanting to disrupt his planned marriage to Mapy, Johnny must figure out how to concoct a temporary marriage-of-convenience with the descendant -- who turns out to be the beautiful Terry Havelock-Allen.
Ding Dong Williams, a clarinet player who can neither read nor write music is employed at a motion picture studio. The studio plans to use him and his six-piece band but his musical deficiencies are discovered and the plan scrapped. But the secretary of the head of the music department intercedes on his behalf and he is given a chance in the film.
Dee Dee Dillwood, une riche héritière, a déjà renoncé à se marier cinq fois, au dernier moment. La sixième fois, son tuteur la pousse à au moins essayer pour de bon. Elle se marie donc avec Henry Benson, mais le soir de leur mariage elle quitte la chambre d'hôtel pour se réfugier dans la suite voisine, occupée par Marvin Payne. Après de nombreuses péripéties, ils finiront par tomber amoureux et elle l'aidera à monter sa compagnie d'aviation.