Meet the creator
FOLLOW THE INSTINCT.
Seonghyeon brings spontaneous musical ideas and an appetite for new experiences to the crew.
At a glance
- Full name
- Eom Seonghyeon
- STAGE NAME
- Seonghyeon · 성현
- Birthday
- 13 January 2009
- Age
- 17 (international)
- NATIONALITY
- South Korean
- Group role
- Member
- Agency
- BIGHIT MUSIC
- Group debut
- 18 August 2025
- Fandom
- COER
His creative DNA
A chance beginning
Scouted at a theme park on his birthday in 2018; joined the label in 2021.
Ideas without hesitation
Contributed a post-hook idea to GO! and Hongdae references to FaSHioN.
Learning by creating
Developed music and video-editing skills while experimenting with fellow trainees.
Creative spotlight
- GO!CORTIS · Post-hook idea
- FaSHioNCORTIS · Lyric ideas
- COLOR OUTSIDE THE LINESCORTIS · Collaborative toplines
Off stage
- Skateboarding
- Basketball
- Guitar
- Vintage accessories
The story so far
A birthday trip to a theme park in 2018 led to Seonghyeon being scouted. He stayed in contact with the agency and joined in 2021, later moving from Daejeon to Seoul.
He describes learning through trying things with other trainees, from rap and toplines to video editing. Everyday experiences and the music he is listening to feed into his ideas.
That spontaneous approach appears in the post-hook of GO! and the Hongdae references he suggested for FaSHioN. Away from work, he enjoys exploring new experiences and styles.
In his own words
“We hope people like us for our talents”Read the full debut interview (opens in a new tab)
Music & creative work
A closer look at Seonghyeon’s contributions to the music, movement and visual world of CORTIS.
- GO!CORTIS · Post-hook idea
- FaSHioNCORTIS · Lyric ideas
- COLOR OUTSIDE THE LINESCORTIS · Collaborative toplines
These highlights describe collaborative contributions discussed in interviews. See release credits for formal songwriting and production roles.
Photos & video

