Butterfly is the tenth studio album by Taiwanese singer Jolin Tsai. It was released on March 27, 2009, by Warner and Mars. Tsai worked on the album with various producers, including Adia, Paul Lee, Peter Lee, and Paula Ma. It was poorly received by music critics, who commented that the tracks were popular but lacked surprise, sincerity, and breakthrough.

Jolin Tsai is a Taiwanese singer, songwriter, and actress. Known as the "Queen of C-pop", she is one of the most influential pop cultural figures in the Chinese-speaking world. Recognized for her continual reinvention and versatility in musical style and visual image, she is regarded as a key figure in bringing dance-pop music into the mainstream in Greater China. She assumes creative control over all aspects of her career, and her works, which incorporate themes of societal issues and ideological connotations, have garnered both commercial success and critical acclaim.