231万 copies in just 9 months... “Post BTS” Cortis Sparks a Storm

A Newcomer That Shook up the K-Pop Scene in Under 9 Months: Cortis’ Overwhelming Takeoff

Cortis, a rookie boy group armed with uniquely self-produced music, is causing a seismic shift in the global music scene. They’re writing a new K-pop hit formula that blends major agency infrastructure with artists’ autonomy.

Dominating music and album charts... ‘Young Creator Crew’ with Billboard entry now in sight

In August last year, BigHit Music’s Cortis debuted and then pulled off an extraordinary feat—sweeping major domestic and overseas charts within just nine months. With an average age of 18, they topped Melon’s “Top 100,” Korea’s biggest music platform, with their new song RedRed. For a boy group that debuted less than a year ago to take the #1 spot on that chart is something only they have managed in the past year.

Album sales are just as remarkable. Their mini 2nd album, GreenGreen, surpassed 2.31 million copies in initial sales (first-week). Among K-pop albums released this year, they recorded the second-highest figure after their direct senior group, BTS’s regular 5th album Arirang (4.17 million copies). They’ve fully seized mainstream appeal as well, beyond the limits typical of fandom-centered boy groups. Their global performance is also striking. RedRed landed at #17 on Billboard’s “Bubbling Under Hot 100” in the United States, and their official SNS followers exceeded 11 million, proving their worldwide impact.

A team-wide ‘Co-Creation’ system... Breaking K-pop rules with ‘Raw Emotions’

Experts point to two key factors behind Cortis’ explosive popularity: a firm group identity and a co-creation system. They don’t just take part in lyric writing, composition, and production—every member also leads everything from choreography to video production. Instead of a massive and complex universe, they visualize unadorned raw emotions, like dressing in everyday clothes and walking the streets, drawing out deep resonance with Gen Z. On short-form platforms such as TikTok, the RedRed challenge has been used in more than 460,000 posts, sparking a sensation.

Music critic Lim Jin-mo praised their in-house production abilities, saying, “A unique team that will present a new paradigm for K-pop after BTS.” Critic Kim Do-heon also analyzed, “They broke standardized rules and made the freedom of underground hip-hop feel polished and compelling for mainstream audiences.”