Lateralus (pronounce /lætərˈælɪs/) is the third full-length album by Tool. It was released on May 15, 2001 and debuted at number one on the Billboard 200. On August 5, 2003, Lateralus was certified double platinum by the RIAA. On August 23, 2005, Lateralus was released as a limited edition two picture disc vinyl in a holographic gatefold package.