Kim Si-yoon
2005 (21) • Acting
Kim Si-yoon
Kim Si-yoon, known mononymously as Siyoon, is a South Korean rapper, singer and lyricist under MYSTIC STORY. She is a member of the girl group Billlie and its sub-unit Moon Sua X Siyoon.
Known For
KPOPPED
34%
Self
2025
the interlude of 11
2022
Idol's Physical Race
Self
2022
KPOPPED
34%
Self
2025
the interlude of 11
2022
Idol's Physical Race
Self
2022
