In the late 1960s, he played the drums in the band "John Mars and the Martians"[1] with bassist Kevin Cosman and guitarist Stan Baka.
Mard then moved to Toronto where he met pianist Stuart Broomer and saxophonist Bill Smith.
The three men formed the successful jazz trio "Broomer, Mars & Smith" which actively performed throughout the 1970s.
[3] In 1980 Smith left to pursue other projects and the duo "Stuart Broomer & John Mars" was formed.
[1] In the mid-1990s he met guitarist Mike Ardelli and the two began performing with their mutual pal drummer Glenn Kimberley in an ad hoc group called the Natural Born Lovers.