Katie and Lily Blaine are a singing-sister act playing the vaudeville circuit. Songwriters Skeets Harrigan and Harry Calhoun see star potential in the sister act.
Before filming began, there was said to be a feud between Faye and Grable, although the two actresses had never met. On the first day of production, the actresses quickly got along and became lifelong friends.
Tyrone Power and Don Ameche were considered for the leading roles, but scheduling conflicts took them out of the running.
References
^"All-time Film Rental Champs". Variety. October 15, 1990.
^Green, Stanley (1999) Hollywood Musicals Year by Year (2nd ed.), pub. Hal Leonard Corporation ISBN0-634-00765-3 page 100