Iron King (song) is an opening theme (OP) for Iron King. It was performed by Masato Shimon. * Lyricist = Sasaki Mamoru * Composer = Shunsuke Kikuchi * Arranger = Kikuchi Shunsuke, (CBS Sony Cover Version: Tatsuo Takai), (Teichiku Cover Version: Takashi Yamakura) * Singer = Masato Shimon, (CBS Sony Cover Version: Same), (Teichiku Cover Version: Mikio Nakano)