Stryper is an American Christian metal band from Orange County, California, known for their distinctive yellow and black stage outfits. Formed in 1983, the group was one of the first to introduce Christian themes to mainstream heavy metal. The band, featuring members Michael Sweet, Robert Sweet, Oz Fox, and Tim Gaines, achieved significant success with their 1986 album "To Hell with the Devil," which was certified platinum. Stryper's fusion of hard rock and evangelical lyrics played a key role in the development of Christian metal.