Young J is the leader and founder of Just Jerk, an urban dance crew created in 2011 and based in Seoul, South Korea. Just Jerk is known for their precise synchronization as an urban dance team. Urban dance is a genre that, according to Young J, combines elements of a variety of styles such as hip-hop, popping and b-boying. The crew now consists of 13 active members who perform and choreograph both domestically and internationally. Enjoying an enthusiastic response at home and abroad, Just Jerk became prominent by winning a world-famous dance competition and appearing on Season 12 of America's Got Talent in 2017. - 1st in "BODY ROCK" (currently 10.5 million YouTube views) held in the United States in 2016 - America's Got Talent (Season 12) - And Show6 'Wish Fire' performance at the opening ceremony of Pyeong Chang Winter Olympic Games in 2018 Watch drama online for free.