Pigs in a Polka is a 1943 Warner Bros. Merrie Melodies animated cartoon short directed by Friz Freleng. The short was released on February 6, 1943.
The film is a parody of two Walt Disney Productions films: 1933's Three Little Pigs and 1940's Fantasia. The familiar story of The Three Little Pigs is set in this film to several of Brahms' "Hungarian Dances", specifically No. 5, No. 7, No. 6 and No. 17 which appear in that order.
— Wikipedia