Jang Yooseong

(29 years old)

Born: March 17th, 1995

Place of birth: South Korea

Death: -

Jang You Sung (장유성), also known as Yooseong, is a member of 7-member boy group W.O.W (와우) under A.CONIC Entertainment. He was a member of Rion Five and T.E.N.

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