In June 1962, she made a great debut with her famous chanson ‘Tous les garçons et les filles' which became a hit all over Europe at her age of 18. The song made the wave of Yé-yé music in France with two million sales. It was when another famous song ‘Comment te dire adieu' appeared that Hardy estalished her as a singer in 1968. The song received a favorable review from many critics who were indifferent to young singers without precedent. Since then, she has been a cultural iconic figure in France. All of almost her songs were self written, and they have been translated into English, Spanish, Italian and German. As an actress, she appeared in many films - ‘Château en Suède”(1963) , “Une balle au cœur”(1965), ”What’s new pussycat?”(1966) “Masculin- Féminin”(1966) and “Grand prix”(1967)