CORTIS is a five-member boy group under BIGHIT MUSIC. MARTIN, JAMES, JUHOON, SEONGHYEON and KEONHO debuted on August 18, 2025 with What You Want, followed by their first EP COLOR OUTSIDE THE LINES on September 8.

The group’s name draws its letters from “COLOR OUTSIDE THE LINES.” All five members participate in creating music, choreography and videos. Their second EP GREENGREEN arrived in May 2026, followed by MOTION with Juicy J and the expanded GREENGREEN_playextended.