Lee Dong-hyeok (born June 6, 2000), known professionally as Haechan (해찬), is a South Korean singer. He is a member of South Korean boy band NCT and its subunit NCT U alongside its fixed subunits NCT 127 and NCT Dream. On September 8, 2025, Haechan began his solo debut with the release of his first studio album Taste.

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Haechan is a South Korean singer and performer widely known as a member of the boy band NCT and its subunits NCT 127, NCT Dream, and NCT U.
He is primarily recognized for his dynamic musical performances in concert films and documentaries such as NCT Dream Mystery Lab and NCT Nation.
He is a core member of SM Entertainment's global pop group enterprise NCT. Follow Haechan on Mood.