21 Years Old
Shim Ja-yun (심자윤), known under her stage name Yoon (윤), is a South Korean singer/K-pop idol. She is under High Up Entertainment. She is best known as one of the lead vocalists of the girl group STAYC.
Gwangju, South Korea on 14th April 2004
![STAYC 1st World Tour [TEENFRESH] in Seoul Image](https://www.themoviedb.org/t/p/w220_and_h330_face//3QVbLW4FOW9xLg83CpDIIuoyyub.jpg)
