Sweety is a Mandopop band from Taiwan, a duo consisting of Esther Liu (Chinese: 劉品言; pinyin: Liú Pǐnyán; colloquially known as 言言 Yan Yan) (born August 8, 1988) and Joanne Tseng (sometimes transliterated as Joanne Zeng or Joanne Zheng; Chinese: 曾之喬; pinyin: Zēng Zhīqiáo; colloquially known as 喬喬 Qiao Qiao) (born November 17, 1988). The duo were formed in 2002 and debuted in 2003 when both members were only 14 years old.
Sweety were active from 2003 to 2006 and so far the duo has released 3 studio albums and 2 soundtracks, but Sweety went on hiatus as a group since 2007 when member Esther went to Paris to study for a few years, while Joanne has since continued with her solo career. As of 2016, Sweety still remain inactive as a group as both members have been focusing on their solo careers since their hiatus in 2007.
Apart from singing, both members have also acted in movies and TV series.