Related Information for Invocator Formed in 1986 by vocalist/guitarist Jacob Hansen, guitarist Jakob Schultz, bassist Jesper M. Jensen, and drummer Per Möller Jensen, Denmark's Invocator released a series of thrash metal albums infused with slight progressive touches during the first half of the '90s. 1991's Excursion Demise debut and its 1993 follow-up, Weave the Apocalypse, were both released by Sweden's Black Mark label, after which the group jumped to Nuclear Blast for 1994's Early Years (a c.. read more