U-Know Yunho, born Jung Yunho (정윤호), is a South Korean singer and actor, best known as a member of boyband TVXQ.
Known For: Acting
Birthday: 1986-02-06
Place of Birth: Gwangju, South Korea
Also Known As: 유노윤호, Yunho Jung, Yunho, U-Know, 정윤호, Jung Yun-ho, 윤호, TVXQ, 동방신기, 郑允浩