Soobin

Who Is Soobin? Meet WJSN’s Ever-Cheerful Main Vocalist

If you’ve ever wondered who keeps the mood light backstage at a WJSN (also known as Cosmic Girls) comeback, the answer is almost always Soobin. Born Park Soo-bin in Seoul on 14 September 1996, Soobin has spent a decade as one of the group’s main vocalists, earning the nickname “Happy Virus” for the warmth she brings to every stage, interview, and behind-the-scenes clip. Let’s walk through her story, from seven long years as a trainee to her current work with the virtual idol project FE:VERSE.

Early Life and Trainee Years

Before she was ever a K-pop idol, Soobin was simply a girl from Seoul with a love of music. She auditioned for and joined Starship Entertainment years before WJSN existed as a concept — in fact, she holds the distinction of being the very first trainee to sign with the company. That’s seven years of vocal lessons, dance practice, and patience before she ever stepped on a debut stage. During that stretch she also picked up piano, violin, and flute, skills that still show up in the emotional control she brings to WJSN’s ballads today.

Debuting With WJSN

On 25 February 2016, Soobin officially debuted as a member of WJSN, alongside twelve other members, with the mini album Would You Like? She was placed in the group’s Sweet Unit, one of four concept sub-groups that spell out the letters in WJSN. From the start, her clear tone and easygoing stage presence made her a natural anchor for the group’s vocal line.

Life Beyond the Main Group: WJSN CHOCOME and FE:VERSE

Soobin’s career hasn’t stayed confined to WJSN’s main lineup. In October 2020, she became a founding member of WJSN CHOCOME, a vocal-driven sub-unit that debuted with the single “Hmph!” alongside labelmates Luda, Yeoreum, and Dayoung. Then, in 2023, Soobin stepped into an entirely different kind of spotlight: the virtual idol survival show Girl’s Re:verse. Competing under the persona Kim Serena, she secured a spot in the resulting project group FE:VERSE, releasing tracks like “I Promise” and “Time Takes Me to Love.”

Fun Personality, Real Staying Power

Ask any longtime Ujung (WJSN’s fandom) about Soobin, and you’ll hear the same thing: she’s one of the most reliably upbeat members in the group. Whether she’s cracking jokes on variety shows like The Gashinas or steadying a live performance with her vocals, Soobin has built a decade-long reputation as someone fans can always count on for a smile — and a solid high note.

Frequently Asked Questions About Soobin

What is Soobin’s real name? Her birth name is Park Soo-bin.

What position does Soobin hold in WJSN? She is a main vocalist and a member of the Sweet Unit.

Is Soobin still active with WJSN? Yes — she continues to promote with WJSN and also performs with the virtual group FE:VERSE.