Influenced by Aaliyah, Wallen made her recording debut with producer Sullee B Wax, and rapper Sté Strass.
In 1998, she was featured on the French RnB compilation "24 Carats", with "Je ne pleurs pas" (I'm not crying).
With Abd al Malik and a few other rappers she created a group called Beni Snassen, that recorded an album under that name.
On February 9, 2011, the album Château rouge by Abd al Malik, in which she participated, was crowned with a Victoire de la musique.
[2] In 2014, she collaborated on the soundtrack of the film Qu'Allah bless la France, from which the clip L'Amour fou is extracted.