Complex sentence: As part of band Muzion that was formed in 1999, Imposs had great success with Muzion with a contract with BMG and a debut album "Mentalité Moune Morne" he became well known in the urban scene throughout Canada and in Quebec in particular.
Split into simpler sentences: As part of band Muzion that was formed in 1999, Imposs had great success with Muzion with a contract with BMG. The debut album "Mentalité Moune Morne" in 1999 was a hit and Imposs became well known in the urban scene throughout Canada and in Quebec in particular.