CORTIS returns with 'REDRED,' doubling down on identity

K-pop boy band CORTIS performs "REDRED," the prerelease track from the group's upcoming second EP "GREENGREEN," at a press event at YES24 Live Hall in Seoul's Gwangjin District, Monday. Yonhap

Rookie K-pop boy band CORTIS is betting on a more defined sense of identity with its latest release, "REDRED," leaning into what the group describes as an "honest reflection" of its creative direction.

The five-member group — Martin, James, Juhoon, Seonghyeon and Keonho — dropped "REDRED" on Monday as the prerelease track from its second EP "GREENGREEN," due May 4.

The group debuted last August under BigHit Music, the HYBE Labels subsidiary managing BTS, with "COLOR OUTSIDE THE LINES," quickly gaining traction for its hip-hop-driven sound that drew comparisons to artists like Travis Scott and Playboi Carti. The approach proved effective particularly among younger listeners, as tracks like "FaSHioN" and "GO!" spread across short-form media platforms.

"REDRED" continues that trajectory, but with a conceptual frame. The track uses the colors green and red to draw a line between what the group embraces and what it rejects.

From left, K-pop boy band CORTIS members Martin, Juhoon, Keonho, Seonghyeon and James pose during a press event at YES24 Live Hall in Seoul's Gwangjin District, Monday. Yonhap

"It's about what we pursue and what we stay wary of," Juhoon said during a media showcase held at YES24 Live Hall in Seoul's Gwangjin District on Monday, just a few hours ahead of the song release.

"At first it felt vague, but the idea became clearer once we started building around it," he added.

James said the concept began almost accidentally.

"I came up with 'green' while working on rhymes, and from there we expanded it with 'red' and developed the track with the producer."

As with their debut, the members were involved with production, onstage visuals and choreography, a point the group emphasizes as proof of creative ownership.

"Because we participated in the whole process, the album reflects our taste and standards," Seonghyeon said.

Martin struck a more assertive tone, saying, "Even now, after listening to it repeatedly, it still feels fresh. From the first listen, it gave me chills ... There's an intensity that doesn't wear off."

K-pop boy band CORTIS performs "REDRED," the prerelease track from the group's upcoming second EP "GREENGREEN," at a press event at YES24 Live Hall in Seoul's Gwangjin District, Monday. Yonhap

The performance of "REDRED" unveiled at the press event leaned heavily on abrasive electronic textures, looping beats and a hook designed for immediate recall.

The track, combined with its intentionally simple lyrics, sits in a gray area between hip-hop and what some describe as "brain rot" music — a deliberately repetitive, algorithm-friendly style that has gained traction among younger audiences.

Commercially, the group shows little sign of slowing down. Its debut EP surpassed 2.06 million copies in cumulative sales, according to Circle Chart, setting a record for a K-pop debut release.

Preorders for "GREENGREEN" have already crossed 2.02 million, according to BigHit, positioning it as another potential double-million seller.

K-pop boy band CORTIS performs "YCC (Youngcreatorcrew)," a track from the group's upcoming second EP "GREENGREEN," at a press event at YES24 Live Hall in Seoul's Gwangjin District, Monday. Yonhap

Still, the group framed its approach less in terms of numbers and more around "honesty," which it described as a key point of connection with its audience.

"Even if a song sounds good, we ask whether it truly feels like us," Martin said. "We're constantly discussing what defines our originality."

"Our debut captured who we were at the time," Keonho added. "This album shows how we've changed after performing on stage and growing through those experiences."

K-pop boy band CORTIS performs "YCC (Youngcreatorcrew)," a track from the group's upcoming second EP "GREENGREEN," at a press event at YES24 Live Hall in Seoul's Gwangjin District, Monday. Yonhap