Lee Chang Sun is a South Korean singer, dancer, model, and former member of 24K and TAN. He graduated from Yangmyung High School and later obtained an associate's degree in Practical Dance from Kookje University. He made his debut in August 2016 when he joined as 24K's new main dancer and vocalist with their digital single, "Still 24K". The group, managed by Choeun Entertainment, was never able to find a steady fanbase and opportunities to promote, often spending several years on hiatus before ...