Siyoon

Biography

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.

Known For

KPOPPED

Idol's Physical Race

Perfect Girl

the interlude of 11

All Movies (2)

• the interlude of 112022
• Perfect Girl—

All TV Shows (2)

• KPOPPED2025 · as Self
• Idol's Physical Race2022 · as Self