There are at least 3 artists named Mass Grave: 1). Mass Grave is a Canadian anarchist crust punk band formed in 2002 in Vancouver, Canada. Following legendary predecessors like Disrupt, as well as Doom and WarCollapse, Massgrave is a strong advocate of world peace, being anti-war, pro-marijuana, pro-animal liberation, and anti-class oppression. Massgrave's roots began to grow after the break up of Goat and Woody's crust band Trench Rats in 2001.