Thomas Thivierge-Gauthier, known by the alias Mantisse in the Montreal rap group LaF, is a 25-year-old singer-songwriter who is currently working on his debut solo project titled Colin-Maillard. Don’t miss Mantisse at the ephemeral stage Culture Trois-Rivières located at the FestiVoix welcome plaza and at the urban stage ABI at L’Espiègle Pub Festif bar on Saturday, July 6th!