Diamond Yukai

Yutaka Tadokoro, known professionally as Diamond Yukai, is a Japanese rock singer and actor. He was born in Tanashi, Tokyo, Japan. He is the vocalist for the Japanese rock band Red Warriors. He has ac... Yutaka Tadokoro, known professionally as Diamond Yukai, is a Japanese rock singer and actor. He was born in Tanashi, Tokyo, Japan. He is the vocalist for the Japanese rock band Red Warriors. He has acted in the Hollywood films Tokyo Pop and Lost in Translation and is often seen on television variety shows.