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Born: 26 January 1986 · Age: 40
Kim Jae-joong is 40 years old as of October 2026. He was born on 26 January 1986.
South Korean singer who rose to fame with TVXQ, co-founded JYJ and helped change rules on idol contracts
Did you know?He was adopted as a baby and grew up with eight older sisters.
Kim Jae-joong was one of the earliest K-pop stars with a large following in Japan. TVXQ became one of Asia's biggest groups. A lawsuit over contracts led him to leave and form JYJ. The case helped change Korean rules on idol contracts. He has also acted in dramas. He founded his own agency. His long career has made him one of the most enduring figures of K-pop's early waves. He remains especially popular in Japan.
Kim Jae-joong (Korean: 김재중; born January 26, 1986), also known mononymously as Jaejoong in South Korea and Jejung/J-Jun (ジェジュン) in Japan, is a South Korean singer-songwriter, actor and director.
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Profile
South Korean singer, born 1986
Kim Jae-joong was born in Gongju on 26 January 1986.
He was born in Gongju, South Korea.
He debuted with the boy band TVXQ in 2003.
He co-founded the trio JYJ in 2010.
Career highlights
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Reviewed by the Who Shares My Birthday editorial team.
Last reviewed: October 2026