Koga Yudai (古賀 祐大; born October 21, 1997), known professionally as K (ケイ; 케이), is a Japanese singer and choreographer under HYBE Labels Japan. He is a member of the boy group &TEAM.
Also Known As：Koga Yudai·古賀 祐大·こが ゆうだい·케이·ケイ·&TEAM·앤팀·アンドチーム·andTEAM·
Biography：Koga Yudai (古賀 祐大; born October 21, 1997), known professionally as K (ケイ; 케이), is a Japanese singer and choreographer under HYBE Labels Japan. He is a member of the boy group &TEAM.
