High Quality Content by WIKIPEDIA articles! X Japan is a Japanese metal band founded in 1982 by Toshimitsu "Toshi" Deyama and Yoshiki Hayashi. ORiginally named X, the group achieved its breakthrough success in 1989 with the release of their second album Blue Blood. THey started out as a power/speed metal band and later gravitated towards a progressive sound, at all times retaining an emphasis on ballads. AFter three more albums, X Japan disbanded in 1997.