Christian metal emerged in the late 1970s as a means of evangelism to the wider heavy metal music scene, and was pioneered by the American Resurrection Band and Swedish Jerusalem. Los Angeles' Stryper achieved wide success in the 1980s, otherwise the genre was mostly ignored by the mainstream. California's Tourniquet and Australia's Mortification led the movement in the 1990s. The metalcore groups Underoath, Demon Hunter, As I Lay Dying, and Norma Jean (dubbed by Revolver Magazine as "The Holy Alliance") brought some mainstream attention to the movement in the first decade of the 21st century, achieving ranks in the Billboard 200.