Audioslave was an American hard rock band formed in 2001. They released three studio albums, eleven singles, two video albums, and nine music videos. After vocalist Zack de la Rocha left Rage Against the Machine in October 2000, the remaining band members guitarist Tom Morello, bassist Tim Commerford, and drummer Brad Wilk decided to stay together and announced plans to continue with a new vocalist. Several vocalists jammed with the three, until the producer Rick Rubin suggested the former Soundgarden vocalist, Chris Cornell. The quartet began working in the studio in late May 2001 with Rubin as producer. The band's self-titled debut was released the following year, and peaked at number seven on the Billboard 200 chart, selling 162,000 copies in its first week. It was certified gold by the Recording Industry Association of America (RIAA) within a month of release, and by 2006 became their most successful release, with a triple platinum certification. The follow-up, 2005's Out of Exile, topped the Billboard 200 chart, and sold 263,000 copies in its first week. The following year, Audioslave released their third studio album, Revelations, which peaked at number two on the Billboard 200 and sold 142,000 copies during its first week of release, achieving gold certification a month later. In early 2007, the band broke up due to internal strife over its creative direction.