The slow angel is a caricature of Stepin Fetchit and the musical angels are based on Cab Calloway as the band leader, Fats Waller on piano, and Louis Armstrong on trumpet. The tap-dancing Harlemite is Bill Robinson and the guy singing "I Love to Singa" is an African-American version of Al Jolson. The vocal group parody The Mills Brothers
One of the "Censored 11" banned from T.V. syndication by United Artists in 1968 (then the owners of the Looney Tunes film library) for alleged racism. Ted Turner continued the ban when he was hired and stated that these films will not be re-issued and will not be put on Home Video. These cartoons will probably never air on television again, and only non-Warner Bros. licensed public domain video tapes will probably ever have these cartoons on them.