Michael Harrison Sweet is a singer and guitarist from Whittier, California; he is the co-founder, songwriter, guitarist and lead singer of the Christian metal band Stryper. He's also had a successful solo career, and briefly served as singer and guitarist for Boston from 2007 to 2011.

Christian metal, also known as white metal, Jesus metal or heavenly metal, is heavy metal music distinguished by its Christian-themed song lyrics and the dedication of the band members to Christianity. Christian metal is typically performed by professed Christians, principally for Christians and is often produced and distributed through various Christian networks.