Pauline Vasseur was born 5 January 1988 in Lens, Pas-de-Calais.

When she was 12 years old, she joined the Conservatory of Lille, where the passion of her piano teacher, David Masson, seemed to rub off on her.

She then prepared to pass the Diplôme d'études musicales that she obtained at 15.

She worked and wrote some texts with Martin Rappeneau, Lena Ka, Jean-Luc Léonardon and François Welgryn.

During the concert on the Champ de Mars on 14 July Pauline, then 19 years, sang her hit "Allô le monde" in front of more than 500,000 people.