She announced her marriage to Taiwanese singer Calvin Chen on 23 January 2020, via Instagram. She has been in a relationship with Chen for 10 years.[3]
Career
In 2002, Tseng, along with Esther Liu, formed a Mandopop duo called Sweety, and they debuted in 2003. Tseng and Liu were both only 14 years old when they debuted. Sweety was active from 2003 to 2006 and the duo released 3 studio albums and 2 soundtracks, but the group has been on hiatus since 2007 as a result of Liu starting her studies in Paris, and Tseng focusing on her solo career.
Apart from singing, both members have also acted in film and television series. Since becoming a soloist, Tseng has appeared and starred in numerous television series in both Taiwan and mainland China. She is currently signed under HIM International Music.
In 2017, Tseng relaunched her singing career by releasing her solo debut music video, eleven years after Sweety released their final album.
Tseng, Joanne (2019). Yi ge ren qu dan mai, xie yi ben shu: hei ni wei shen me ni bu yao kuai le 一個人去丹麥,寫一本書: 嘿 你為什麼不要快樂. Taipei: China Times Publishing. ISBN9789571376677.