Original: Saludos Amigos (Hello, friends in English, Alô, Amigos in Portuguese) is a 1942 animated feature produced by Walt Disney and released by RKO Radio Pictures.
Simplified: Aquarela do Brasil (or "Watercolor of Brazil"), the finale of the movie, involves a brand-new character, José Carioca, showing Donald Duck around South America and introducing him to the samba (to the tunes of "Brazil" and "Tico-Tico no Fubá").