Less than a year into their career, CORTIS is already making their first comeback — and the K-pop world is watching closely. BIGHIT MUSIC’s newest boy group has officially announced that their second EP GREENGREEN is on the way, complete with a two-phase release strategy that’s building anticipation perfectly.
Table of Contents
CORTIS GREENGREEN Comeback — All the Key Dates
| Detail | Info |
|---|---|
| Group | CORTIS |
| Label | BIGHIT MUSIC (HYBE) |
| Comeback EP Title | GREENGREEN |
| Pre-release Title Track | April 20, 2026 at 6 PM KST |
| Full EP Release | May 4, 2026 at 6 PM KST |
| Debut Date | August 18, 2025 |
| Debut EP | Color Outside the Lines |
| Members | Martin, James, Juhoon, Seonghyeon, Keonho |
Who Are CORTIS?
If you haven’t caught on yet, CORTIS is the group K-pop fans have been quietly buzzing about since August 2025. They debuted as BIGHIT Music’s newest boy band — the label’s first new boy group in six years since TXT, and only the third since BTS debuted. That lineage alone made them one of the most anticipated rookie acts of the year.

The group blends pop, hip-hop, and experimental elements, and gained early attention for their performance skills, self-produced content, and strong rookie-year sales. All five members earned credits on their debut project — a rare and impressive feat for a group so new.
Their name says it all: CORTIS is short for “COLOR OUTSIDE THE LINES,” meaning to think freely and break free from the world’s established standards.
Why GREENGREEN Is a Big Deal
For a group barely six months old, dropping their first-ever comeback is a genuine milestone. The two-phase rollout — pre-release title track on April 20, followed by the full EP on May 4 — is a smart strategy that gives fans two moments to rally around, builds streaming momentum, and keeps the group in the conversation for weeks.
CORTIS amassed 1 million TikTok followers within six days of launching their official account, and their debut MV trended across 11 regions on YouTube. GREENGREEN arrives with that momentum firmly behind them — and a global fanbase (called COER) that’s been waiting for exactly this moment.
K-pop comebacks are a defining ritual in the industry — you can learn more about how the Korean pop music ecosystem works on Wikipedia’s K-pop page.
For more K-pop comeback news and updates, stay tuned at Technosports.
FAQs
Q: When is CORTIS releasing their second EP GREENGREEN?
CORTIS will pre-release the title track on April 20, 2026, with the full EP dropping on May 4, 2026 — both at 6 PM KST.
Q: Who are the members of CORTIS and which label are they under?
CORTIS is a five-member boy group — Martin, James, Juhoon, Seonghyeon, and Keonho — under BIGHIT MUSIC, the same label as BTS and TXT.





