Blossom Seeley and Bennie Fields (1927)

The curtain opens; behind it are two pianos where Charles Bourne and Phil Ellis, billed as the Music Boxes, are seated playing. After a few bars, Blossom Seeley and Bennie Fields enter - she's in tulle, he's in sport coat, worsted trousers, vest, and tie carrying a cane and straw hat. They do three numbers, "Hello Mr. Bluebird," Irving Berlin's "The Call of the South," and "(A Pretty Spanish Town) On a Night Like This." Between the first two numbers, they kibbutz about southern music, and for the third song, she dons a sombrero and a serape and he sports a guitar and a gaucho hat. There's also a bit of dancing during the third number.