Mayhem Festival 2009
mayhem festival second annual north american mayhem festival founded kevin lyman july dlc song pack sold music video game rock band band lineup released press release mayhem festival website band page mayhem festival website marilyn manson slayer killswitch engage bullet valentine mushroomhead replace bullet valentine trivium remains god forbid jägermeister battle band winner one per location cannibal corpse behemoth job cowboy black dahlia murder whitechapel mayhem festival tour date seen official website date originally seen press release removed explanation given