Jeanmaire first appeared as a chanson singer in Petit's "Croqueuse de diamants" in 1950. A chanson, composed by Raymond Cheneau, won a Grand Prix du disque. In Hollywood, she appeared in the musical film "Hans Christian Andersen" in 1952, with Danny Kaye and Farley Granger. In 1954, she starred on Broadway again, in the musical "The Girl in Pink Tights". She returned to Paris and married Petit that year. Their daughter Valentine was born the following year, and would become a dancer and actress.