Testament

While most bands change their sound and image as time wears on, the Oakland, California-based metal outfit Testament hasn't really changed anything since its inception in 1983. Sure, there have been a few minor modifications with line up alterations - but apart from that, nothing has really changed. The band is still wearing black jeans and leather jackets, still sporting long hair and still playing a distinct form of heavy metal. The group was one of the pioneers of the thrash metal scene, that originated in and around the San Francisco Bay Area.