He participated in a 2001 charity tour, 'Wa', with Toshi, vocalist of the metal band X Japan.
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Junichi Sato (supervisor of Sailor Moon and Ojamajo Doremi) wrote a letter to Dio asking him to participate in Kaleido Star.
Dio | Ronnie James Dio | Dio (band) | Kobayashi Issa | Kenta Kobayashi | Takeru Kobayashi | Cassius Dio | Kobayashi Maru | Kiyoshi Kobayashi | Ken-Ichiro Kobayashi | Dio Chrysostom | Yumiko Kobayashi | Takao Kobayashi | Satoru Kobayashi | Hiroshi Kobayashi | Dio Brando | Abdullah Kobayashi | Yutaka Kobayashi (businessman) | Yutaka Kobayashi (announcer) | Yutaka Kobayashi | Shinji Kobayashi | Sachiko Kobayashi | Royal Kobayashi | Mao Kobayashi | Kuniaki Kobayashi | Kaoru Kobayashi (actor) | Kaoru Kobayashi | Hideo Kobayashi |