From D23, the Official Disney Fan Club…
Walt Disney Animation Studios presents a never-before-seen short starring the one and only Mickey Mouse in Get A Horse! featuring Walt Disney himself as the voice of Mickey Mouse, this black-and- white, hand-drawn short follows Mickey, his favorite gal pal Minnie Mouse and their friends Horace Horsecollar and Clarabelle Cow as they delight in a musical wagon ride, until Peg-Leg Pete shows up and tries to run them off the road.