At the age of 14 he became a gravedigger, salesman, printer, show organizer, publisher of telephone directories business, key to real estate, etc.

For its third year, Gilbert Rozon moved La Grande Virée to the Pointe-aux-Trembles neighbourhood in Montreal.

He was the producer of shows featuring Laurent Ruquier, Franck Dubosc, Dieudonné M'bala M'bala, Florence Foresti, Arturo Brachetti, Stéphane Rousseau, Jean-Marc Parent, Jean-Luc Lemoine, Rachid Badouri, André Sauvé, Christophe Alévêque, etc.

[5][6] In 1998, Gilbert Rozon received an unconditional discharge from the Quebec Superior Court after pleading and being found guilty of a sexual assault on a 19-year-old woman,[7] because a criminal record would have made it difficult for him to travel internationally for his work.

[8] On October 18, 2017, Rozon announced he was resigning from his position as the President of Just for Laughs as well as the vice-president of the Montreal Metropolitan Board of Trade, amid allegations of sexual misconduct.