Undercover

Undercover is an American Christian punk band based in Fullerton, California, formed in the early 1980's by Joey "Ojo" Taylor and James "Gym" Nicholson. Through more than two decades and a few lineup changes, the band released eight studio albums and two live albums, and were pioneers in what would later be called Alternative music in the Christian world. The band was known for the spiritual growth shown in their music as their career progressed; CCM Magazine once called them "the band that grew up in public.
Undercover started as a second-generation Jesus movement based band, associated with Calvary Chapel Costa Mesa and its Maranatha! Music record label.
"God Rules," the title track of the second album, is the song that set apart Undercover in the Christian music scene from the rest of the "beginning" bands.
While the band has seen several members come and go (and come again), Taylor has said on more than one occasion that the band decided sometime after 1994's Forum that "Undercover is Ojo, Gym, Sim, and Gary," emphasizing that any other lineup, if any, would in the future be called something else.