Representing France, she won the Eurovision Song Contest in 1977 with L'oiseau et l'enfant ("The bird and the child") the day before her 20th birthday, with music by Jean Paul Cara and words by Joe Gracy.

In 1981, Myriam also represented France in the Yamaha Music Festival with the song "Sentimentale"; she came in ninth place.

[3] Myriam made an appearance at the 50th anniversary concert in Copenhagen, Denmark, in October 2005 as a guest presenter and performer.

The same year, she wrote the introduction to the French edition of The Eurovision Song Contest – The Official History by John Kennedy O'Connor.

[4] Myriam was married to music producer Michel Elmosnino from the late 1970s until his death at age 67 on 20 December 2013.