The Eight Dimensions

The Eight Dimensions (traditional Chinese: 八度空間; simplified Chinese: 八度空间; pinyin: Bā dù kōng jiān) is the third studio album by Taiwanese singer Jay Chou. It was released on 18 July 2002, by BMG Taiwan and Alfa Music. Chou acted as the album's sole lyricist, as he had on all of his preceding albums, while the lyrical content was penned by several collaborators such as Vincent Fang and Will Liu. Musically, The Eight Dimensions is an R&B and pop album that incorporates various genres such as rock, hip-hop, and soul.

The Eight Dimensions received generally favorable reviews from music critics, who directed most of the acclaim towards its sonic quality. The album was a massive commercial success and was Taiwan's best-selling album of 2002 with 335,000 copies sold, becoming Chou's second consecutive best-selling annual album after Fantasy (2001). It has since sold over 2.2 million copies across Asia. Chou promoted the album by embarking on The One World Tour, which ran from September 2002 to December 2004.