It was composed by Jerome Kern and Oscar Hammerstein II.
Barnett is taken with beer-hall singer Adeline Schmidt, and insists she star in his next show, The Love Story.
This of course angers professional singer Elysia who was supposed to get the role.
Barnett also composes The Belle of Hoboken for Schmidt, and stars opposite her.
Barnett was played by John Seymour in the original Broadway run, and by Donald Woods in the 1934 film.