How old is Seonghyeon?

Seonghyeon was born on 13 January 2009.
Seonghyeon is 17 years old.

How old is Seonghyeon in days now?

Seonghyeon is 17 years 1 month 8 days old.
Total 6,248 days old now.

When is the next birthday of Seonghyeon?

Seonghyeon's next birthday is in 10 months 23 days.

What is the zodiac sign of Seonghyeon?

Zodiac sign of Seonghyeon is Capricorn.

Seonghyeon is a young and promising South Korean pop singer, also songwriter and producer best known as a member of the K-pop group CORTIS. Born Eom Sung-hyun on January 13, 2009, in Daejeon, South Korea, he grew up in Seo-gu and studied at Daejeon Gwanjeo Elementary School. Being truly passionate about the local pop music from an early age, Seonghyeon joined BigHit Music in 2021, where he was trained intensively in vocals, performance, dance, and other entertainment production skills.

He officially debuted as a group member in August, 2025, when CORTIS released their lead single “What You Want,” the title track of their first EP titled COLOR OUTSIDE THE LINES. The song, along with their track “Go!,” quickly gained popularity and earned more than 10 million streams each on Spotify, as of early 2026. Known to his numerous fans by his English name Sean, Seonghyeon has an INTP personality type and enjoys movies, dramas, basketball, skateboarding, and biking. His career continues rising quickly in the global K-pop scene.