Ginger Harmon sings the title song, and the Mercer Brothers dance a bit in this soundie.
Soundies were short films, about three minutes in length. The were meant to be played on a machine called a Mills Panoram, a video jukebox that was typically to be found in bars, lounges, and similar venues. You put a dime in and got a performance from the ten on the machine. The movies would be changed weekly, and from 1940 through 1946, Mills and other companies produced more than two thousand soundies.
They came in a large variety of types; mostly musical numbers, although there were occasional comedy shorts. This one purports to be Latin American, and while Miss Harmon's voice proclaims she's not from anywhere south of New Jersey, the costuming and the conga that the cast breaks into towards the end says otherwise.