CORTIS — Where to Listen on the Radio

Cortis (Korean: 코르티스; stylized in all caps) is a South Korean boy band formed by Big Hit Music. The group consists of five members: James, Juhoon, Martin, Seonghyeon, and Keonho.

Big Hit Music's third group after BTS and Tomorrow X Together, Cortis debuted on August 18, 2025 with the single "What You Want". They later released their first extended play, Color Outside the Lines, which debuted at number 15 on the Billboard 200, the second‑highest entry for a K‑pop act's debut album. The EP also set records for first‑day sales and has surpassed two million in cumulative album sales. They have won several accolades at the 10th Asia Artist Awards, 2025 MAMA Awards, and 40th Golden Disc Awards.

They have been described as having a sound and image centered on authenticity and self‑expression, and have been praised for redefining creativity within the K‑pop industry.