Siyoon
- Nationality
- South Korean
- Group
- Billlie
Siyoon is a South Korean member of Billlie, a girl group under Mystic Story that debuted on November 10, 2021. She was among the original six members at launch, having previously competed on the talent show K-pop Star 5 and worked as a model for Popteen magazine. In April 2025, she and fellow member Moon Sua formed Billlie's first sub-unit, releasing the single "Snap" featuring Sokodomo. The group's first studio album, The Collective Soul and Unconscious: Chapter Two, followed in May 2026.
Official Video
Discography
Billlie- 2026-05 The Collective Soul and Unconscious: Chapter Two full
- 2026-01 cloud palace ~ false awakening single
- 2025-05 The Savior (Dead Mansion X Billlie) (Original Webtoon Soundtrack) [Japanese Version] ost
- 2025-02 The Savior (Dead Mansion X Billlie) [Original Webtoon Soundtrack] ost
- 2024-10 Of All We Have Lost mini
- 2024-10 Appendix: Of All We Have Lost mini · Remembrance Candy
Latest News
All news- comeback Billlie returns with ‘The Collective Soul and Unconscious: Chapter Two’ 2026-05-06
- release Billlie Releases Single 'cloud palace ~ false awakening' 2026-01-27
- comeback Billlie comes back with ‘Appendix: Of All We Have Lost’ 2024-10-16
Frequently Asked Questions
- What group is Siyoon in?
- Siyoon is a member of Billlie.
- What is Siyoon's nationality?
- Siyoon's nationality is South Korean.