Im Chang-kyun, known better by the stage name I.M or Changkyun, is a South Korean rapper, singer, and songwriter. He is a member of the Hip-Hop boygroup Monsta X. Before joining Starship Entertainment and Monsta X in 2015, I.M was part of the boyband Nu'bility, under Special K Entertainment. The group never officially debuted. Apart from Monsta X, I.M is also activ as a Solo Artist.