Castle (Jolin Tsai album)

Castle is the sixth studio album by Taiwanese singer Jolin Tsai, released on February 27, 2004 by Sony. The album was produced by Bing Wang, Peter Lee, Jay Chou, Jamie Hsueh, Huang Yi, and G-Power. It incorporates a wide range of musical styles, blending elements of pop, hip hop, Latin, chanson, heavy metal, and British rock. The album received widespread critical acclaim and is regarded as a significant milestone in Tsai's continued success in the Chinese-language music industry.

In Taiwan, Castle sold over 300,000 copies, and its total sales across Asia exceeded 1.5 million copies. It ranked as the second best-selling album of 2004 in Taiwan and earned Tsai the title of the highest-selling female artist of that year. Following the album's release, Tsai embarked on her first concert tour, the J1 World Tour, which began on August 7, 2004, at the Hongkou Football Stadium in Shanghai, China, and concluded on April 22, 2006, at the Bren Events Center in Irvine, United States.