Stray Kids (Hangul: 스트레이 키즈) is a South Korean boy group formed by JYP Entertainment in 2017 and debuted in 2018 through a reality show of the same name. The group is composed of eight members: Bang Chan, Lee Know, Changbin, Hyunjin, Han, Felix, Seungmin and I.N. Woojin left the group on October 27th, 2019 for personal reasons. Prior to the show's premiere, JYP Entertainment released Stray Kids' first music video for a song titled "Hellevator", which was later released as a digital single on November 1, 2017.