Yook Sung-jae is a South Korean singer, actor, Entertainer and host. He is a member and the 3rd generation leader of the boy group BtoB and its sub-group, BtoB Blue. Wikipedia
Born: 2 May 1995 (age 23 years), Suji-gu, Yongin-si, South Korea
Height:Â 1.8Â m
Education: Hanlim Multi Art School (2014), Dongshin University
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