An image from Apple of My Eye, one of the productions that also features Kim Si-yoon.
Kim Si-yoon
February 16, 2005 — Gwangmyeong, Gyeonggi-do, South Korea
Kim Si-yoon is a South Korean singer and rapper managed by MYSTIC Story. She was officially revealed as a trainee under MYSTIC Rookies on February 18, 2020. Now, she is a member of the girl group Billlie.
