In 1980 Forestier played Marie-Jeanne, the robot waitress in the Montreal production Luc Plamondon, Michel Berger rock opera Starmania. Two years later, with Plamondon as Producer, she staged the hit show Je suis au rendez-vous. This was the first of a series of shows in the 1980s, culminating in an appearance with Belgian singer Maurane as part of the Francofolies de Montréal in 1989.