A year ago today, the hard-rock universe lost one of its signature voices, as the great Ronnie James Dio passed away. Now, the heavy-metal legend is being remembered with a tribute tour and a deluxe Blu-Ray release.

Dio, who has fronted such bands as Rainbow, Black Sabbath and Heaven & Hell, succumbed to stomach cancer on May 16, 2010 at the age of 67. The diminutive man with a big voice had been active right up until his death, touring and recording with Heaven & Hell only months before passing.

Now, a year later, members of the late singer's successful solo group Dio are set to embark on a tour honoring his music. The outfit, dubbed the Dio Disciples, features bassist Rudy Sarzo, drummer Simon Wright, guitarist Craig Goldy and keyboardist Scott Warren, along with singers Ripper Owens (formerly of Judas Priest) and Toby Jepson. Their European trek kicks off June 8 in Moscow, Russia, and runs through a July 3 gig in Barcelona, Spain.

In addition, a Blu-Ray edition of 'Heaven & Hell: Radio City Music Hall Live!,' which chronicles an excellent show from the 2007 tour by Dio and his former Black Sabbath bandmates under their new, non-Ozzy threatening name, is set to hit stores Tuesday (May 17). The deluxe release boasts several bonus features, including a new interview segment called 'The Wisdom of Dio.'

Watch Heaven & Hell Performing 'Falling Off the Edge of the World' at Radio City Music Hall

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