K-pop artist best known as one of the main vocalists for the group Super Junior. He has contributed to many soundtracks, including the single "Biting my Lips" for the movie The President.
He was a founding member of Super Junior in 2006.
He earned a Best Supporting Actor Award nomination for his acting debut Attack on the Pin-Up Boys.
He grew up an only child in Incheon, South Korea.
He is joined by Leeteuk in Super Junior.