Pets Tseng Pei-tzu (Chinese: 曾沛慈; born October 21, 1984) is a Taiwanese singer and actress.^[1][2]

Born in Taipei, Tseng graduated from National Chung Cheng University with a degree in Business Administration.^[3]

In 2007, Tseng competed on the second season of singing competition program One Million Star in which she was placed sixth.^[4] She made her television debut in K.O.3an Guo (2009) and in 2012 she starred in drama series KO One Return.^[5] In 2014, she signed a recording deal with Linfair Records, and released her debut album, I'm Pets, in the same year. Her second album, I Love You, Period!, was released on July 2, 2017. In 2018, she signed a recording deal with AsiaMuse Entertainment and on August 16, 2019, she released her third studio album, Confession.

In January 2022, Tseng announced her marriage to Peter Sun, the guitarist of a religious band Joshua Band. Tseng and Sun have known each other for more than 10 years and dated for more than one-and-a-half years before marrying.^[6]

• Tseng, Pets (2013). Fen Lie = Wu Xian Ke Neng: Wo Hai Shi Wo, Zeng Pei Ci. Taipei: Royal Road Books. ISBN 978-986-6010-78-1.