Testament is an American thrash metal band from Berkeley, California. Formed in 1983 under the name Legacy, the band's current lineup comprises guitarists Eric Peterson and Alex Skolnick, lead vocalist Chuck Billy, drummer Gene Hoglan, and bassist Steve Di Giorgio. Since its inception, Testament has had numerous lineup changes, leaving Peterson as the only constant member. Billy replaced original singer Steve "Zetro" Souza in 1986, prior to the recording of their first studio album, The Legacy, and has been a member of the band since. Peterson and Billy are the only members to appear on all of Testament's studio albums.
Testament is often credited as one of the most popular and influential bands of the thrash metal scene, as well as one of the leaders of the second wave of the genre in the late 1980s. The band has sold over 1.4 million albums in the United States since the beginning of the SoundScan era and over 14 million copies worldwide. To date, Testament has released eleven studio albums, four live albums, six compilation albums, twelve singles and three DVDs.
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