I remember him jumping on stage with Machine Head in 2007 to do backing vocals. I think Adam Duce missed a large part of that tour and Sanctity was an opening act. They had a different bassist though.
01/18 & 01/19 -- Godspeed You! Black Emperor and Neurosis (in Montreal)
02/08 -- Dark Tranquility
04/11 -- Black Sabbath
04/24 -- Nile