The Singing Fool (1928)
The title is a combination of the titles of the Al Jolson pictures "The Jazz Singer" and "The Singing Fool."
The title of this cartoon is a play on "The Singing Fool"
Al Jolson gag with "Sonny Boy"
Dick Powell impersonates Al Jolson singing "Sonny Boy" from this film
Donald mentions the movie by name.
Fragment. Song 'Sonny boy'