"One of the unique and controversial variants of the Tom Shows was Walt Disney's 1933 Mickey's Mellerdrammer. Mickey's Mellerdrammer is a United Artists film released in 1933. The title is a corruption of "melodrama", thought to harken back to the earliest minstrel shows, as a film short based on a production of Uncle Tom's Cabin by the Disney characters. In that film, Mickey Mouse and friends stage their own production of Uncle Tom's Cabin.
"Mickey Mouse was already black-colored, but the advertising poster for the film shows Mickey dressed in blackface with exaggerated, orange lips; bushy, white sidewhiskers made out of cotton; and his now trademark white gloves." - Wikipedia: Uncle Tom's Cabin