Jung Yunho (born February 6, 1986), better known by his stage names, U-Know, U-Know Yunho (in South Korea) and Yunho (ユンホ) (in Japan). He is a Korean singer and occasional actor. He is the leader of the South Korean boyband TVXQ.
U-Know was born and raised in Gwangju, South Korea. He has a younger sister, Jung Ji-hye. At the age of thirteen he joined SM Entertainment, after winning a dance competition. Before debuting in 2003, U-Know appeared in label-mate Dana's music video for her song "Diamond" as a backup dancer and rapper. He has said he chose his stage name to be U-Know because as the leader of the group, he wants to understand everybody as in "I know you."
Stage Name: U-Know
Real Name: Jung YunHo (정윤호)
Position: Vocal (Baritone); Leader
Age: 21/22 (Western/Korean)
Birthday: February 6, 1986
Birthplace : Jun Nam
Education: 3rd year university student
Height: 183 cm
Weight: 66 kg
Blood Type: A
Hobbies: Listening to music, reading, sports and composing music
Special Ability: Singing and dancing
1st Annual SM Best Competition - Best Dancing 1st Place
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