Associated with the bands Accident, Blood et Marie and The Radio Rats in the early 1980s, she subsequently became a backing vocalist for Claude Dubois and The Box, and was later selected by Luc Plamondon to play the role of Marie-Jeanne in a revival of Starmania.
[1] She subsequently released her debut album as a solo artist, Dans la peau, in 1988.
She has since released four more studio albums and a greatest hits compilation, and participated in another production of Starmania in 2000, this time in the role of Sadia.
She returned to Montreal in 2005 to perform several benefit concerts to raise money for development projects in Peru.
In 2020, Carmen, Joe Bocan and Marie Denise Pelletier announced the joint concert tour Pour une histoire d'un soir, although the tour was delayed by the COVID-19 pandemic in Quebec and instead launched in 2022.