In 1986, she was the youngest singer to reach number one in the French charts, with the single "T'en va pas", and she went on to sell millions of records during the decade.

Lunghini first performed in a movie at age seven, in 1981, in Claude Miller's Garde à vue (also starring Romy Schneider).

At 13, in 1986, she remained number 1 for eight weeks with "T'en va pas" (soundtrack of the movie La Femme de ma vie).

It sold more than 600,000 copies with hit singles such as "Quelque chose dans mon cœur" ("Something in my heart"), "Jour de neige" ("Snowing day"), "Jamais nous" (with backing vocals by French singer Laurent Voulzy) ("Never us"), "Un Roman d'amitié" (duet with Glenn Medeiros) ("Friend you give me a Reason"), "À la même heure dans deux ans" ("At the same time in two years").

[citation needed] She has starred in two TV movies: 2002's La mort est rousse and 2004's Trois jours en juin and is involved in a television advertising campaign for Danone yoghurt.