Yoon Jeong-han

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. He is also a member of the group's first official and third special sub-unit, JxW.