Soulfly is an American metal band formed in 1997 and based in Phoenix, Arizona. The original lyrical content revolved around spirituality and religious themes, with later albums encompassing other themes including war, violence, aggression, slavery, hatred and anger. Soulfly is led by former Sepultura frontman Max Cavalera, who formed the band after he left the Brazilian group in 1996. The band has released nine studio albums, one tour EP, 19 singles, and one DVD video. Their debut album, Soulfly, was released on April 21, 1998, while their newest album, Savages, was released on September 30, 2013. Soulfly incorporates many styles of metal with Brazilian tribal and world music. All of their first six studio albums debuted on the United States Billboard 200, with a peak position at number 32 for their second album, Primitive.Soulfly has been certified gold by the Recording Industry Association of America. The band has gone through numerous line-up changes, with Cavalera being the only constant member.