CORTIS (코르티스), formerly known as BIGHITNBG (BIGHIT New Boy Group), is a 5-member South Korean boy group under BIGHIT MUSIC. The members are Martin, James, Juhoon, Seonghyeon, and Keonho. In the USA, they're represented by Republic Records. They debuted on August 18, 2025, with their first single, What You Want.