EZO or E・Z・O (earlier known as Flatbacker; Flatbacker style is heaviest, faster and less melodic than EZO's) is a legendary Japanese hard'n'heavy band that played something between hard rock, heavy/speed metal and hair/glam rock. Members: Masaki Yamada (v), Hirotsugu Homma (d), Shoyo Iida (g) and Taro Takahashi (b). Masaki and Hiro have played in Loudness some time ago. Hiro is now member of heavy metal band called Anthem.