Swedish Death Metal Band Featuring Kristian Niemann And Christofer Johnsson Of Therion. The Band Also Consists Of Kristian's Brother Johan And Rickard Evensand Chimaira Ex-Soilwork . Their Debut And Currently Only Album Riders Of The Apocalypse Is A Concept Album Partly Based On Theological And Historical Elements That Circle Around The Biblical Riders Of The Apocalypse Characters. Johnsson Has Since Departed Demonoid And On 5th October 2007 A Replacement Frontman Was Announced In The Shape Of Dark Funeral God Among Insects Dominion Caligula And Ex-Hypocrisy Vocalist Emperor Magus Caligula Aka Masse Broberg .