She is known for competing in the TV show Star Académie and for working as one of the models on the set of Le Banquier.

Born in Montreal, Quebec, Vaillancourt started taking violin lessons at age 4.

[3] She also sang "Fuir le bonheur de peur qu'il ne se sauve" by Serge Gainsbourg as a duet with Maxime Landry.

As of 2013 Vaillancourt was teaching at an elementary school in Sainte-Dorothée and working on a master's degree in special education at the University of Montreal.

[8] As of February 2018, Vaillancourt was a Club Med GO in the Americas teaching fitness classes, performing in various nightly ensemble shows and singing to backing tracks at dinner events.