Legendary for his raucous antics and piercing shriek, Ozzy's live show is a metal institution. Drenched in epic organ, “Mr. Crowley” hits a new level of sinister potency in concert. Ditto for “Crazy Train,” its locomotive heft tailor-made for stadiums. Fans lose it when Ozzy dusts off Sabbath nuggets like “Paranoid,” especially when Randy Rhoads' searing fretwork rips across his maniacal chants.