Chantal Goya created the hit Bécassine, c'est ma cousine (written -as usual- by her husband Jean-Jacques Debout) in 1979. I am not sure any of our daughters remembers this song but it was a triumph. Chantal Goya was immensely popular because of those songs for children that the parents also hummed. I see there was a version in English, Bécassine is my cousine.
I did not know she had been an actress before being a singer (for instance in Jean-Luc Godard's Masculin Féminin in 1966).