Chansung (찬성) is a South Korean singer-songwriter, rapper and actor under L' July Entertainment. He is a member of the boy group 2PM. He made his debut as an actor in the 2006 comedy series High Kick!. He officially left JYP Entertainment after his contract expired on January 25, 2022. He signed with L' July Entertainment on March 3, 2022 as an actor, but he will still continue his activities as a member of 2PM.