Seo-yeon is a South Korean singer. She is active as a soloist under the stage name Yi Seoyeon (Y:SY). She is a former member of the girl group fromis_9.
Seo-yeon is a South Korean singer. She is active as a soloist under the stage name Yi Seoyeon (Y:SY). She is a former member of the girl group fromis_9.
![FROMIS_9: [NOW TOMORROW WORLD TOUR]](https://image.tmdb.org/t/p/w300/qinIVlRNvtqLLBDX5c51NqO5Azq.jpg)