Weezer, also known as "The Green Album" due to the lime-green cover, is the third studio album by American rockband Weezer, released on May 15, 2001. Produced by Ric Ocasek, it was released on Geffen Records, as were its two predecessors. This is the first, and only Weezer album to feature bassist Mikey Welsh, who replaced long-time member Matt Sharp. The musical style of Weezer is grounded in the power pop genre, featuring strong melodies, crisp vocal harmonies, and prominent guitar riffs. It is also Weezer's quickest selling album., Mobile Fidelity's analog version is mastered from the original master tapes and pressed on 180g LP at RTI.