If you’ve ever wondered when Disney first got its singing voice, it was on this day in 1929 with the release of The Opry House. The short marked the first real Disney musical—the prelude to Silly Symphonies and the foreshadowing of full-length animated musicals to come. In the film, Mickey Mouse, the proprietor and the pianist of a Vaudeville Opry house, orchestrates a musical fanfare with a band of instrument-playing animals. But it wasn’t just music that made The Opry House such a special and groundbreaking short. It also marked the first Mickey Mouse cartoon where Mickey wears his trademark white gloves. And he hasn’t taken them off since!