J2 is a pop/ballad duo consisting of twins Jongwoo and Jongwook, Jongwoo being the slightly older one of the two. They released their first single “행방불명 (Missing”) in 2010. They have since appeared on several OSTs and Jongwook has also released a number of solo singles and albums. Their most recent release was for the OST of the MBC drama “Love Cheer”. Both of them are vocalists and lyricists.
Full Name: Kan Jong Woo (간종우)
Also known as: WOO/WOO of J2
Date of Birth: April 11th, 1982
Twitter: http://twitter.com/#!/j2lyrics (Regularly tweets in English!)