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.

Cent mille chansons was recorded in 1968 and earned her a Gold disc, while Un jour, un enfant (1969) earned her a Platinum disc and Pour vivre ensemble (1971) earned her another Gold disc. Other of her famous songs include “Cherbourg avait raison” (1961), “Aujourd’hui” (1965), “Le moulins de mon coeur” (1969), “L’enfant aux cymbales” (1969), “Belle du Luxembourg” (1969), “La croix, l’étoile et le croissant” (1970), “Venise va mourir” (1970), “Trop jeune ou trop vieux” (1971), “Valdemosa” (1976), “L’année où Piccolli… (Jouait Le choses de la vie)” (1978), “Un monde en sarabande” (1979) and “La prière” (1979). In the late 1960s, she also recorded “Un pays pour nous”, a song that was a French version of “Somewhere” (from the musical West Side Story). Leonard Bernstein, who composed the original melody, declared that Boccara’s version was his favorite.

Boccara renewed her links with Eurovision by participating in the French national finals of 1980 – performing “Un enfant de France” – and 1981 – with “Voilà comment je t’aime”. However, neither song won. She died in 1996 in Paris, France, aged 55, from a pulmonary infection, after some health problems.