The cartoon starts with a toy telling other toys an announcement as the toys then cheer. The toy announces a play by 3 toy girls singing as a Jack in the box pops out and sings as the other toys dance along. Another toy then blows a balloon and turns big and sings as well as the performance ends for the next performance. Another toy performs then later on the other toys play with the toy instruments. The performance goes on for a while while the toys mess around with each other. Later on, the toys are still making music. Near the end of the episode, the performance starts to end. Then the toy band explodes.
- This is perhaps one of the most well known Happy Harmonies short, as it is played every year on Christmas on Boomerang.
- This short includes animation reused from the Merrie Melodies cartoon The Shanty Where Santy Claus Lives (1933).
- DVD - The Joan Crawford Collection: Sadie McKee (dubbed version)
- DVD - Happy Harmonies