Vincent Youmans was a young man whose plans of becoming an engineer were derailed when he was drafted into the Navy in World War I. Rather than seeing combat, he found himself in charge of putting on entertainments for the sailors. After the War, he became one of the "Tin Pan Alley" composers, penning this song along with collaborations with Ira Gershwin and Oscar Hammerstein among others. He became one of the most successful composers for Broadway - and wrote all the music for Fred Astaire's and Ginger Rogers' first film, Flying Down To Rio.
Sadly, his career was cut short. After only 13 years he came down with tuberculous and died at the age of 47. You wonder what other music he might have written if he had been spared that fate.