In the 1980s, Berthiaume travelled throughout Quebec with various groups, playing more than 400 concerts featuring covers of Supertramp, Genesis, U2, etc.
It was during this period that he produced a first record entitled Yellow Street (Dance music) that was carried out in collaboration with DJ M.C.
He also worked at that time with Allen McCartey (Men Without Hats), Steve Tracey (Loni Gamble, Céline Dion), Luc Phaneuf (Starmania), Yvan Payeur (Cirque du Soleil) and several other performers from Montreal.
In the beginning of the 1990s, he was attracted by Ambient Music and quickly became prominent in this style.
In 1992, Berthiaume was awarded a Félix for The Sacred Fire as the album of the year, in the ambient/new-age category.