Dio is not a big man; in fact, he barely breaks the 5-foot mark. But packed inside that elfin frame is an extremely powerful voice that has been blowing minds and wetting seats for more than three decades. Most Sabbath fans tend to dismiss all post-Ozzy albums as inconsequential, but just one listen to the title track of Heaven and Hell will silence any naysayers. Hopefully, this tour will help fans of Ozzy-era Sabbath realize that there is life after Ozzy, and with opening acts Megadeth and Machine Head along for the ride, there will be so much "hard 'n' heavy" in the air, concertgoers will need an aqualung to breathe. And, no, that was not a Jethro Tull reference.