K-pop rookie group CORTIS is set to release their second mini album 'GREENGREEN' on May 4th. The group officially announced the album release through Weverse on the morning of the 6th. Prior to the album release, CORTIS will unveil the title track on April 20th at 6 PM, with the song first being revealed at the 'NBA Crossover Concert Series' headlining performance. The new album will include 'YOUNGCREATORCREW,' a new song previously released at the NBA Crossover Concert Series. Since their debut in September of last year with their first album 'COLOR OUTSIDE THE LINES,' CORTIS has achieved cumulative sales exceeding 2 million copies. The group notably participated directly in all creative aspects of their debut album, including music, choreography, and visuals, and plans to follow the same approach for their new album. They are expected to showcase their creative capabilities across various fields such as songwriting, composition, performance, and videography, raising fans' anticipation.