CORTIS, the Rising 5th Gen Idol Group

The K-Pop industry has officially welcomed a new face from the fifth generation. Boy group CORTIS made their official debut on August 18, 2025, instantly grabbing attention with their unique sound, sharp choreography, and strong group identity.

Their title track, “What You Want”, was even released in an English version on August 22, 2025, featuring international artist Teezo Touchdown. This early collaboration proves that CORTIS has their eyes set on the global stage right from the beginning.

The Debut Album COLOR OUTSIDE THE LINES

CORTIS’s first album, COLOR OUTSIDE THE LINES, was premiered on YouTube on August 10, 2025. The album consists of five tracks:

1. GO! (intro)

2. What You Want (title track)

3. FaSHioN

4. JoyRide

5. Lullaby

The group members took an active role in the album’s production. Both GO! and JoyRide were entirely written and produced by the five members, while FaSHioN was produced by Martin, Joo Hoon, Sung Hyun, and Geon Ho. The final track, Lullaby, was produced by Martin with contributions from James and Sung Hyun. This level of involvement highlights that CORTIS is more than just visuals—they are true musicians.

Predebut Success

Even before their official debut, CORTIS had already built massive anticipation. Their TikTok account reached over 1 million followers in just 6 days, proving how quickly fans were drawn to them.

Meanwhile, their music video for GO! made it into the trending music videos chart in 11 countries, including South Korea, the United States, Canada, and the United Kingdom. Such recognition before an official debut is rare and showcases their strong global potential.

Major Stage Appearance

One of their biggest early milestones is their scheduled performance at the NHK Music Expo Live 2025 at Tokyo Dome on November 3, 2025. Being invited to perform on such a prestigious stage only three days after debut is nothing short of remarkable.

This feat proves that CORTIS is already being recognized as a major contender among 5th generation K-Pop groups.

Spotify Records

CORTIS also made waves on streaming platforms. Their debut single “What You Want” recorded 133,647 streams on its first day, ranking them fourth in first-day streams among 5th gen K-Pop boy group debuts, right behind ZEROBASEONE, RIIZE, and AHOF.

On the second day, the number surged to 324,884 streams, showing that listeners weren’t just curious—they truly loved the track enough to replay it repeatedly.

Conclusion

CORTIS’s debut with COLOR OUTSIDE THE LINES and the title track What You Want marks them as one of the most promising groups in the 5th generation of K-Pop. From their explosive predebut popularity and record-breaking streaming numbers to their upcoming Tokyo Dome stage, CORTIS is off to an extraordinary start.

Fans around the world are eager to see how far they will go. With such a powerful debut, the future of CORTIS looks nothing but bright.