Stryper is an American Christian metal band. The group's lineup consists of Michael Sweet (lead vocals, guitar), Oz Fox (guitar, backing vocals), Perry Richardson (bass, backing vocals), and Robert Sweet (drums). Prior to forming Stryper, the Sweet brothers performed together in several bands. Robert Sweet began playing drums in his early teens, and the brothers started performing together when Robert was around seventeen and Michael around fourteen. The brothers performed under the names Firestorm and Aftermath before briefly joining forces... [more on Wikipedia]