Bye, Bye Baby is a 1949 Broadway show tune from the musical Gentlemen Prefer Blondes. The music is by Jule Styne and the lyrics by Leo Robin. The song tells a bittersweet story of a man torn between two loves, as a wedding ring signals a commitment that shadows his romance. It premiered on December 8, 1949 with Jack McCauley and Carol Channing, and the first recording followed on July 10, 1949 by Frank Sinatra with The Pastels Orchestra conducted by Hugo Winterhalter. Since then it has been covered by many artists, including Marilyn Monroe in a 1950 Rob-In and Styne release, and it remains a popular show tune in the vocal jazz and pop repertoire.