Osbourne's voice was a little weary and supported heavily by a back-up singer/keyboardist; he gave fans plenty of time to sing along with his band, too, often stepping aside to allow ticket holders to voice choruses.

His stage presence gripped fans with its proverbial claws and kept them there for the duration of the performance. Looking stronger and healthier than on the last couple of Ozzfests, Osbourne repeated the same stage banter, telling fans they weren't loud enough. In another move copped from Ozzfests, Osbourne was armed with a spray gun that spewed a white foam over fans on the main floor. Frustrated fans returned the favor, throwing clumps of the foam at Osbourne. He also threw buckets of water on his fans. At other times, he stood center stage clapping his hands over his head out of time with the music. But it's Ozzy. He can get away with background singers and out-of-time clapping.

Per tradition, Osbourne arrived on stage after a series of video clips that placed him as the star of several movies, music videos and television shows. Saying "I'm back!" Osbourne, dressed as Capt. Jack Sparrow of "Pirates of the Caribbean," bit off a fake parrot's head. He also appeared in mock scenes from HBO's hits "Entourage" and "The Sopranos" as well as "The Office," "Wedding Crashers" and a hilarious stint on "Dancing With the Stars." He also cracked up the audience by dancing on a treadmill along with OK Go during its video for "Here It Goes Again."

Osbourne was backed by his usual cast of characters. Guitarist Zakk Wylde, looking like an old tramp with his trench coat, long beard and black leather hat, provided the searing guitar licks for which he has become known. Osbourne wandered back and forth across the stage greeting his band members throughout the show, which also includes drummer Mike Bordin, formerly of Faith No More, and bassist Rob "Blasko" Nicholson, ex of Rob Zombie [ tickets ]'s band.

Osbourne's stage was simple: a wall of speakers was positioned below multiple video screens, which, at times, were covered by red velvet curtains. That was in stark contrast to supporter Rob Zombie, whose hour-long set was punctuated with a stream of hits. A film clip of "Werewolf Women of the SS," starring Nicolas Cage, prepared the audience for Zombie's arrival. Go-go dancers on risers bookended the elevated drum kit. Three televisions were placed at the front of the stage to serve as mini-platforms for Zombie, his guitarist John 5 and bassist Piggy D. Four videoscreens continually looped horror-film footage.

Like his 2006 solo tour, Zombie and his band--which also includes drummer Tommy Clufetos--stepped on stage wearing black clothing with glow-in-the-dark skeletons on them. Zombie kicked off his set to "American Witch," a song about the Salem witch trials. Before the second song kicked in, the band, accompanied by a set of flames, whipped off their skeleton masks.

"When there's little kids [in the audience] with mohawks, that's a good sign," Zombie told the crowd, which filled half of Jobing.com Arena.