CORTIS — Where to Listen on the Radio

Cortis (Korean: 코르티스; stylized in all caps) is a South Korean boy band formed by BigHit Music in 2025. The group consists of five members: James, Juhoon, Martin, Seonghyeon, and Keonho.

BigHit 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. Their 2026 single "RedRed" became the group's most commercially successful song for far, reaching number one at the Circle Digital Chart. They have won several accolades at the 10th Asia Artist Awards, 2025 MAMA Awards, and 40th Golden Disc Awards.