Lead screamer Rob Halford returned to Judas Priest just in time to celebrate the pioneering metal act’s thirtieth anniversary with a reunion album and a high profile slot at Ozzfest. Nostalgic Priestheads will be forced to shell out additional cash for the band’s boxed set, Metalogy, to get their hands on the coveted DVD release of this legendary 1982 Memphis show. Taking the stage to the strains of “Hellion,” Halford is a black-leather peacock, accessorizing his pants and sleeveless jacket with spiked wristbands, shinguards, handcuff-festooned belt, a leather biker cap, dark sunglasses and a lengthy bullwhip. He looks like the lost member of the Village People — how the hell did we not know? But moments later, Halford unfurls the first of the evening’s numerous banshee wails, and the group soars into high gear. All of the early hits are here, along with a generous serving of ’70s nuggets. K.K. Downing and Glen Tipton’s cheesy choreography is equal parts quaint and distracting, but their twin-guitar attack and Halford’s operatic voice are pure metal up your ass. Not that there’s anything wrong with that.