CORTIS is a rising K-pop boy group under BIGHIT MUSIC, featuring five young members: Martin, James, Juhoon, Seonghyeon, and Keonho. The group officially debuted in 2025 and quickly attracted international attention.
Cortis Age: How Old Are the Members?
The question of Cortis age refers to the ages of the individual members rather than one specific person. As of August 2026, the members range from 17 to 20 years old, with James being the oldest and Seonghyeon and Keonho among the youngest.
| CORTIS Member | Date of Birth | Age in 2026 | Role/Fact |
|---|---|---|---|
| James | October 14, 2005 | 20 | Oldest member |
| Juhoon | January 3, 2008 | 18 | Vocalist/Rapper |
| Martin | March 20, 2008 | 18 | Leader |
| Seonghyeon | January 13, 2009 | 17 | Vocalist/Dancer |
| Keonho | February 14, 2009 | 17 | Youngest member |
The birthdays and current ages are consistent with published CORTIS member profiles.
Who Is the Oldest CORTIS Member?
James is the oldest CORTIS member, born on October 14, 2005. He turned 20 in October 2025. His age makes him the only member currently in his twenties, while the other four members are still teenagers or have recently turned 18.
Who Is the Youngest CORTIS Member?
Keonho is the youngest member, born on February 14, 2009. Seonghyeon was born just one month earlier, on January 13, 2009, making the two members very close in age.
“Important Facts About CORTIS”
- Group: CORTIS
- Agency: BIGHIT MUSIC
- Members: 5
- Debut: August 18, 2025
- Oldest member: James
- Youngest member: Keonho
- Leader: Martin
- Age range in 2026: 17–20 years
- Group concept: “Color Outside the Lines”
CORTIS stands out because its members are involved in creative areas such as music, choreography, and video production, rather than focusing only on performing. The group has been described as a “Young Creator Crew,” which has become an important part of its identity.
Despite being a relatively new group, CORTIS has quickly established itself as a notable new-generation K-pop act. Its debut EP, Color Outside the Lines, helped introduce the five members to a global audience, while the group’s youthful image and creative participation have contributed to its growing popularity.