Boots and Saddles (1936)
Boots and Saddles is a 1937 American Western film directed by Joseph Kane and starring Gene Autry, Smiley Burnette, and Judith Allen. Based on a story by Jack Natteford, the film is about a young Englishman who inherits a ranch that he wants to sell, but is turned into a real Westerner by a singing cowboy.
More at Wikipedia.