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.