Acting
Yoon
April 14, 2004 (age 22)Gwangju, South Korea
Shim Ja-yoon, known professionally as Yoon, is a South Korean singer under High Up Entertainment. She is a member of the girl group STAYC.
Shim Ja-yoon, known professionally as Yoon, is a South Korean singer under High Up Entertainment. She is a member of the girl group STAYC.
![STAYC TOUR [STAY TUNED] in Sydney poster](https://image.tmdb.org/t/p/w1280/fsAVgRn8lIjFdweHpq6uODxhK8r.jpg)
![STAYC 1st World Tour [TEENFRESH] in Seoul poster](https://image.tmdb.org/t/p/w1280/3QVbLW4FOW9xLg83CpDIIuoyyub.jpg)