In 1964, Boccara had submitted the song "Autrefois" to the French Eurovision Song Contest selection panel, but she was unsuccessful. Five years later, at the Eurovision Song Contest 1969, held in Madrid, Spain, she represented France performing "Un jour, un enfant" (A Day, a Child) – music by Émile Stern and text by Eddy Marnay. Her song shared first place along with the entries from the Netherlands, the UK, and Spain.