History of Hard Rock/Heavy Metal: Dio

For a brief spell during the mid-'80s, the heavy metal quintet Dio was one of the top U.S. concert attractions, boasting one of the most over-the-top stage acts of its time loaded with props and special effects (lasers, explosions, a giant dragon, etc.).

The group's leader was singer Ronnie James Dio, who had previously become acquainted with the metal masses as the frontman of Ritchie Blackmore's Rainbow from 1975-1978 and Black Sabbath from 1979-1982.

Come the early '80s, Ronnie James was ready to finally head out on his own, forming Dio and recruiting a stellar backing band, consisting of a few former bandmembers, ex-Rainbow bassist Jimmy Bain and ex-Black Sabbath drummer Vinny Appice (Carmine Appice's brother), in addition to ex-Sweet Savage guitar shredder Vivian Campbell.

The group scored a hit right off the bat with their 1983 debut release, Holy Diver, which spawned such popular MTV videos as "Rainbow in the Dark," as well as its title track.

For their sophomore effort, 1984's The Last in Line, the band expanded its lineup to include keyboardist Claude Schnell, as the album would become the biggest hit of Dio's career (on the strength of another MTV-approved video, for the album's anthemic title track) and the group became an arena-headliner.

Although Dio's next release, 1985's Sacred Heart, was commercially successful, Campbell had become disillusioned by the group's direction and split from the group a year later. Just prior to Campbell's exit, the entire Dio band helped organize Hear N' Aid, an all-star assembly of heavy metal artists that recorded a track called "Stars," which helped fight world hunger (a subsequent album was issued as well, collecting previously unreleased live tracks from a few of the day's top hard rock acts).

Former Giuffria guitarist Craig Goldy took Campbell's place, resulting in such releases as 1986's live EP Intermission and 1987's Dream Evil, which retained the group's headbanging audience, but failed to expand upon it as its previous releases had.

By 1990's Lock up the Wolves, Ronnie James Dio was the only original member of Dio left in attendance as the band's lineup continued to fluctuate throughout the '90s on such releases as 1994's Strange Highways, 1996's Angry Machines, and 1998's Inferno: Last in Live (Ronnie James took a brief break from Dio in 1992 to rejoin Black Sabbath for a lone release, Dehumanizer).

Dio continues to release solid albums and launch successful tours. Ronnie has been rumored to be making an album with Black Sabbath once again.