When Seon-Gyu Yang was growing up, he dreamed of becoming a K-pop star. Unfortunately, there was no place in Korea that could teach him what it took to blow up. So he made one. Welcome to Def Dance Skool, a Gangnam-gu-based dance studio that teaches the skills, moves and attitude necessary to become the country’s next big star. To date, Yang has trained countless singers, actors and TV personalities. Each day, 1,300 students come through the dance studio to turn their star potential into stadium-sized realities.