Ronnie James Dio
American heavy metal singer (1942–2010)

Ronald James Padavona (July 10, 1942 – May 16, 2010), known professionally as Ronnie James Dio, was an American heavy metal singer. He fronted numerous bands throughout his career, including Elf, Rainbow, Black Sabbath, Dio and Heaven & Hell.
Dio's music career began in 1957 as part of the Vegas Kings (later Ronnie and the Rumblers). In 1967, he formed the rock band Elf, in which he sang and played bass. In 1975, Deep Purple guitarist Ritchie Blackmore founded the band Rainbow and hired Dio as lead singer; during his tenure, the band released three studio albums. Dio quickly emerged as one of heavy rock's pre-eminent vocalists. In 1979, Dio replaced Ozzy Osbourne as Black Sabbath's lead singer and appeared on three studio albums with the band, all three of which met with success: Heaven & Hell (1980), Mob Rules (1981) and Dehumanizer (1992). In 1982, he left to form the band Dio, which itself had two albums certified platinum by the RIAA. In 2006, he founded the band Heaven & Hell with his prior Black Sabbath bandmates Tony Iommi, Geezer Butler, and Vinny Appice. In November 2009, Dio was diagnosed with stomach cancer and died of the disease six months later.
Dio is regarded as one of the greatest and most influential heavy metal vocalists of all time.
“Ronnie James Dio” enters the record as american heavy metal singer (1942–2010). Crown Archives preserves that source wording while asking what Ronnie, James and American can confirm, complicate or overturn.
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Biographical claims are most persuasive when dates, appointments and relationships can be traced to records created close to the events described. The source revision retrieved here is dated Sep 21, 2026. The linked authority identifier is Q185151. VIAF identifies the subject as 37101525. The Library of Congress control number is n92020027. 4 of 4 selected statements include explicit references; 1 carry qualifiers and 0 use preferred rank. The first chronological checks are 1942, 2010, 1957 and 1967.
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This entry incorporates text from “Ronnie James Dio” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.