Castle (Chinese: 城堡) is the sixth studio album by Taiwanese singer Jolin Tsai (Chinese: 蔡依林). It was released on February 27, 2004, by Sony Music Taiwan. Following the success of her last studio album, Magic (2003), Tsai continued to secure her A-list status with the new release. Tsai again rang up huge sales with the album, which further increased her popularity in her native Taiwan as well as in other Asian countries. The album has sold more than 2 million copies in Asia, with more than 300,000 copies sold in Taiwan alone, and made her the best-selling female singer of the year in Taiwan. The second track, "It's Love", reached number 8 on the Hit FM Annual Top 100 Singles. The opening track, "36 Tricks of Love", reached number 78 on the chart. The album earned Tsai an MTV Asia Award nomination for Favorite Artist Taiwan. The music video of the lead single, "Pirates", earned Tsai an MTV Video Music Award Japan nomination for Best Buzz Asia.