Pasina nguva, Geezer Butler akabatana naRonnie James Dio pachikuva paRoy Wilkins Auditorium naGeezer Butler kuti vaite "Neon Knights".Pashure pekuratidzira, vaviri vacho vakaratidza kufarira kujoinazve Sabbath. Butler akagutsikana Iommi, uyo akazoputsa mutsara wazvino, achidzinga muimbi Tony Martin uye bassist Neil Murray. "Ndinozvidemba izvozvo munzira dzakawanda", akadaro Iommi. "Takanga tiri panguva yakanaka. Takasarudza [kubatana naDio] uye ini handitomboziva kuti nei, chaizvo. Kune chikamu chemari, asi handizvo zvaive. Ndakafunga kuti pamwe tinogona kudzorera chimwe chinhu chataive nacho".Dio naGeezer Butler vakabatana naCozy Powell muna Chikumi 22 muna 1990 kuti vaite "Neon Knights".
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