Cortis, is a South Korean boy band formed by Big Hit Music. The group consists of five members: Martin, James, Juhoon, Seonghyeon, and Keonho. They debuted on August 18, 2025, with the digital single “What You Want" followed by their first EP, "Color Outside the Lines".

The group’s name is derived from the phrase “Color Outside the Lines,” reflecting their concept of creative freedom. Cortis has been promoted as a self-producing “creator crew,” with members participating in songwriting, choreography, and visual direction.

Blending pop, hip-hop, and experimental elements, the group gained early attention for their performance skills, self-produced content, and strong rookie-year sales, establishing them as one of Big Hit Music’s newer generation acts.