In October 1957, Clark was invited to appear at the Paris Olympia for the Europe N°1 live radio show "Musicorama". The next day, she was invited to the office of Vogue Records' chairman Léon Cabat to discuss recording in French and working in France. There, she met her future husband, publicist Claude Wolff, to whom she was attracted immediately, and when she was told that he would work with her if she recorded in French, she agreed. They have two daughters and a son.