Also Known As:Yoon Jeong-han, 윤정한, 정한, SEVENTEEN, 세븐틴
Biography:Yoon Jeong-han (윤정한; born October 4, 1995), known mononymously as Jeonghan (정한), is a South Korean singer-songwriter under Pledis Entertainment. He is a member of the boy group SEVENTEEN and its Vocal Team sub-unit.