he is unaware of any evidence that proves this opinion. The piece was developed by Charles Wolcott, and Lacerda went uncredited in the film. was written by Ary Barroso and first released in 1941. Unlike Barroso's other song to be featured in this film, was left in its original Portuguese. The song is sung by Aurora Miranda in the film. is briefly interrupted by Nestor Amaral singing a small portion of which was written by Braguinha in 1931. This song was first recorded under the name and came to be known as in 1936. "Mexico" was composed by Charles Wolcott with lyrics by Ray Gilbert and was sung by Carlos Ramírez. It is the only song in the film to be completely original. The was written by Jonás Yeverino Cárdenas in 1900. It is considered one of the most famous compositions from the Mexican state of Coahuila. "Lilongo" was written by Felipe "El Charro" Gil and copyrighted in the U.S. in 1946, though it was first recorded in the U.S. in 1938. It is performed by Trío Calaveras in the film. "You Belong to My Heart" based its melody on the Mexican song , which was written by Agustín Lara. Like and , new English lyrics were written to the song by Ray Gilbert. (also spelled ) is a traditional Mexican song and the unofficial anthem of the Isthmus of Tehuantepec, in the Mexican state of Oaxaca. The melody is believed to have originated from Andalusia and was rearranged by Andres Gutierrez. Lyrics were written to it by Máximo Ramó Ortiz in 1853. It was arranged for this film by Charles Wolcott. The instrumental composition which plays while the cacti are dancing is , a trademark of the Mexican Revolution which was written by Quirino Mendoza y Cortés in 1916. Over time this piece has also come to be known under the names "J.C. Polka", "Jesse Polka", and "Cactus Polka". The instrumental composition ("Over the Waves") written by Mexican songwriter Juventino Rosas and first published in 1888 can be heard in the film's score during "The Cold-Blooded Penguin" segment while Pablo the penguin is sailing to the Galápagos Islands. A small portion of "Jingle Bells" is briefly sung by Donald Duck. "Babalu" by Desi Arnaz is used briefly. The title song from is heard instrumentally when Donald first opens his presents. Release Theatrical The film premiered in Mexico City on