CORTIS

CORTIS (코르티스) is a five-member South Korean boy group under BIGHIT MUSIC. The group consists of Martin, James, Juhoon, Seonghyeon, and Keonho. They are the third act from BIGHIT MUSIC and the first new boy group from the label in six years since TXT. The group debuted on August 18, 2025 with the single "What You Want," following a pre-debut release "Go!" on August 11. Their debut EP Color Outside the Lines dropped September 8, 2025, featuring lead single "Fashion." The EP debuted at No. 15 on the Billboard 200, the second-highest chart entry for a K-pop act's debut album, and moved approximately 250,000 copies on its first day. It crossed 200 million Spotify streams faster than any other K-pop rookie that year. Before the group was announced, James contributed choreography and songwriting to ILLIT's "Magnetic" and TXT's "Deja Vu." Martin, a member of the Rainbow Children's Choir, represented Iceland as flag bearer at the 2018 Winter Olympics. Juhoon worked as a child model appearing in music videos for VIXX and Zion.T. Keonho was a competitive swimmer before joining BIGHIT. The group performed at the NBA Crossover concert series ahead of the 2026 NBA All-Star Game, becoming the first Korean boy band to headline the event. They took Rookie of the Year and Best Performance at the 10th Asia Artist Awards, and Best New Artist at the 2025 MAMA Awards. Their fandom is called Coer (코어). In the US, CORTIS releases through Republic Records.