Jaman was the drummer of Vampyrouss in 2005-2006 and supporter of the band and related projects since the beginning being part of many projects over the years. Jaman appeared as the lead character in "Path Of Oblivion" and provided the intro "count In" for the Diabolous Nightbreed song "Locust" in 2017.

The same year he appeared as drummer in the Vampyrouss music video for "Gazing Upon The Harvest Moon" along with the other members of the band from the era the song was written (2005/2006).