Kim Yoo-jin (born March 3, 1981), professionally known in English as Eugene, is a South Korean singer and actress, known mostly for her musical career as part of the hit K-pop group S.E.S..
Kim was born in Seoul, South Korea, but spent her childhood in Guam moving there after finishing elementary school. She returned to Korea with her mom and younger sister sometime in high school, after her parents divorced, and eventually graduated from Korea Kent Foreign School.She is fluent in her native language Korean, English, Chamorro and is a Christian.