CORTIS GREENGREEN has a confirmed release date: the full second EP, officially styled as “GREENGREEN,” is scheduled to arrive on May 4, 2026 at 6 p.m. KST. The release follows the lead single “REDRED,” which was released on April 20, 2026 at 6 p.m. KST as the first major step in the group’s comeback rollout.1
For fans trying to keep the calendar straight, the key point is simple: “REDRED” is already out, while the full six-track EP is still scheduled for May 4. BIGHIT MUSIC described the release timing as “scheduled for Monday, May 4,” and the separate pre-order notice made clear that “GREENGREEN” is being treated as a full EP package rather than only a single-track comeback.12
CORTIS GREENGREEN Release Date And Rollout

The comeback timeline began well before the full EP date. Pre-orders for “GREENGREEN” opened on March 27, 2026 at 11 a.m. KST and are scheduled to run through May 3, 2026 at 11:59 p.m. KST through online and offline retailers.2 That pre-order window closes just before the EP’s May 4 release, which gives the rollout a clear sequence: pre-orders, lead single, release parties, then the complete EP.
BIGHIT MUSIC also announced multiple physical and platform formats for the EP. The listed versions include BRIDGE, STREET, STUDIO, Weverse Albums, Dice and Vinyl versions.2 For collectors, that matters because the release is not being presented in just one standard format. It is a broader album campaign with multiple editions attached to the same six-track project.
The official pre-order language also gave fans a compact creative framing for the project, saying that “[GREENGREEN] brings together everything CORTIS stand for.”2 That quote is broad, but it helps explain why the campaign has been rolled out across photos, release events, format announcements and performance-focused promotion instead of relying on one single announcement.
| Item | Confirmed detail |
|---|---|
| EP title | “GREENGREEN” |
| Artist | CORTIS |
| Release date | May 4, 2026 |
| Release time | 6 p.m. KST |
| Lead single | “REDRED” |
| Lead single release | April 20, 2026 at 6 p.m. KST |
| Track count | Six tracks |
| Pre-order period | March 27, 2026 at 11 a.m. KST to May 3, 2026 at 11:59 p.m. KST |
REDRED Came First, With Release Parties Attached
The first major release from the EP cycle was “REDRED,” which arrived on April 20, 2026 at 6 p.m. KST. Star Today covered CORTIS’s April 20 showcase at YES24 LIVE HALL for the title track and reported that all five members participated in writing and composing “REDRED.”3 That makes the lead single more than a preview track; based on the available source material, it is also the song most directly tied to the group’s own creative participation.
The in-person schedule reinforced the two-step rollout. BIGHIT MUSIC announced a “REDRED” release party for April 20, 2026 at YES24 LIVE HALL, while the “GREENGREEN” release party was set for May 4, 2026 at SFACTORY D in Seoul.4 That means the EP release date is not only a digital and physical album date, but also a fan-facing event date.
The April 20 showcase also brought one of the most visible numbers in the comeback campaign. Star Today reported that “GREENGREEN” had surpassed 2 million pre-orders, and member Martin reacted with the short Korean comment “안 믿긴다,” meaning “I can’t believe it.”3 Because that figure was reported before the full EP release date, it gave the May 4 launch a strong commercial context even before the complete project became available.
“REDRED” also gained early visibility outside the showcase setting. The Asia Business Daily reported that BIGHIT MUSIC said the “REDRED” music video topped YouTube’s global Trending Worldwide chart on April 21, one day after release. The report also said the video passed 3.2 million views within its first day and appeared on YouTube trending music charts in 24 countries as of 7 a.m. KST on April 22.5
Album Photos And What Fans Can Expect
Before the single arrived, CORTIS began showing the visual world of “GREENGREEN.” FN Star reported that the group posted the first album photos on official social channels on April 6, 2026. The BRIDGE version photos used Seoul locations connected to the members’ trainee days, adding a personal setting to that version of the album campaign.6
That detail is useful because it gives the BRIDGE version a clearer meaning within the rollout. Rather than treating every edition as interchangeable, the reported photo concept connects at least one version to places associated with the members’ earlier path. The available source material does not provide a full concept breakdown for every format, so the safest way to read the rollout is that BRIDGE has the clearest described visual context so far.
For anyone following CORTIS GREENGREEN from outside Korea, the timing is also important. The listed release time is 6 p.m. KST on May 4, 2026. If you are tracking the release from another time zone, use that KST timing as the anchor, because the official notices provide the Korean release schedule rather than a separate global timetable.
When is CORTIS GREENGREEN released?
“GREENGREEN” is scheduled for May 4, 2026 at 6 p.m. KST. The lead single “REDRED” was already released on April 20, 2026 at 6 p.m. KST.1
How many tracks are on GREENGREEN?
The official pre-order notice described “GREENGREEN” as a six-track album. The source material names “REDRED” as the lead single, but it does not provide a complete tracklist beyond that detail.2
What versions of GREENGREEN are available?
The announced formats include BRIDGE, STREET, STUDIO, Weverse Albums, Dice and Vinyl versions. Pre-orders run from March 27, 2026 at 11 a.m. KST through May 3, 2026 at 11:59 p.m. KST.2

The short version is that CORTIS has already started the “GREENGREEN” era with “REDRED,” album photos, showcases and strong pre-order momentum, but the full EP release date remains May 4, 2026 at 6 p.m. KST. For fans watching the rollout, that is the date when the six-track project officially becomes the main event.
References
- [NOTICE] CORTIS “The 2nd EP [GREENGREEN]” Release (Weverse / BIGHIT MUSIC)
- [NOTICE] CORTIS “The 2nd EP [GREENGREEN]” Pre-Order (Weverse / BIGHIT MUSIC)
- 코르티스 “‘그린그린’ 선주문 200만장 돌파, 안 믿겼다” (Star Today, 2026-04-20)
- [NOTICE] CORTIS The 2nd EP Lead Single “REDRED” & The 2nd EP [GREENGREEN] Release Party Announcement (Weverse / BIGHIT MUSIC)
- CORTIS's New Song "REDRED" Dominates Global Charts Including YouTube (The Asia Business Daily, 2026-04-22)
- '영크크' 코르티스, 미니 2집 '그린그린' 첫 앨범 포토 공개 (FN Star, 2026-04-07)