Testament is an American
thrash metal band from
Berkeley,
California. Formed in 1983 under the name Legacy, the band consists of vocalist
Chuck Billy, guitarists
Eric Peterson and
Alex Skolnick, bassist
Steve DiGiorgio and drummer
Gene Hoglan. In the years since its inception, Testament has had numerous lineup changes, and Peterson has been the only constant member. Billy replaced former singer
Steve Souza in 1986, prior to the recording of their first studio album,
The Legacy, and has been a member of the band since. Billy and Peterson are the only band members to appear on every album.