Martin

Martin (마틴), born Martin Edwards and also known by the Korean name Park Woo-joo, is the leader of CORTIS and one of the clearest examples of how BigHit Music built the group around members who can create as well as perform. He debuted in August 2025 carrying an unusually layered background that stretched from childhood performance into pre-debut production work for major HYBE releases.

Before the public knew him as CORTIS's leader, Martin had already stacked experiences that read larger than the normal rookie playbook. He appeared with the Rainbow Children's Choir, served as a flag bearer for Iceland at the 2018 PyeongChang Winter Olympics, and then entered BigHit's system young enough to grow into its next generation from the inside. He later landed writing and production connections around songs linked to TXT, ILLIT, and ENHYPEN, which gave his eventual debut a real sense of continuity rather than a hard reset.

Inside CORTIS, Martin functions like an organizing force. He has spoken openly about learning from hip-hop crews and bands that build together, and that framing fits the group's image. He helped shape the debut material, wrote across the project, and carries the kind of performance-first leadership that keeps the band from drifting into generic idol polish. As CORTIS moves deeper into its early catalog after Color Outside the Lines and GREENGREEN, Martin remains central to the case for the group as a creator-led act rather than just another polished debut.