Dio was an American heavy metal band formed in 1982 and led by vocalist Ronnie James Dio. Dio left Black Sabbath with intentions to form a new band with fellow former Black Sabbath member, drummer Vinny Appice. The band released ten studio albums and had numerous lineup changes over the years, with Dio himself being the only constant member. Guitarists included Vivian Campbell, Craig Goldy, Doug Aldrich, Warren DeMartini, Tracy G, Jake E. Lee and Rowan Robertson.
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