Full Name: Lee Changmin (이창민)
Birthdate: May 1, 1986 (age 23)
Changmin has finished his mandatory army service, the only idol to have entered the entertainment scene with a completed army service. In December 12, 2008, he featured in Mario's digital single "Superman". He and Jokwon released a digital single titled "졸업" ("Graduation") on February 5, 2009. He was absent from OneDay's predebut reality show "Hot Blood" because of having joined JYP after it was filmed.
He is currently a permanent guest on Star Golden Bell and DJ for "Starry Night Radio" with SNSD's Sooyoung.