Gaynor recorded two albums for the Verve Records label, one called "Mitzi" and the second called "Mitzi Gaynor Sings the Lyrics of Ira Gershwin". She is thought to have earned more from the record royalties on the "South Pacific" soundtrack album than her salary for the movie. She also recorded the title song from her film "Happy Anniversary" for the Top Rank label. For several decades, Gaynor appeared regularly in Las Vegas and at nightclub and concert venues throughout the United States and Canada.