Ozzy Osbourne performing at BlizzCon 2009

Though it was meant to be a super-secret surprise, DirecTV recently let the cat out of Blizzard's bag, revealing that Ozzy Osbourne will be performing at BlizzCon via the event's Pay-Per-View description. Rumors of the Prince of Darkness' appearance have been rumored for quite some time now -- which may help explain why tickets for the event sold out in 4.1 seconds flat.

Ozzy's performing at BlizzCon seems like a natural fit -- after all, if this old Wrath of the Lich King commercial is to be believed, Ozzy's fond of rolling through Azeroth as an Undead Warlock. However, if the same advertisement is any indication, he's really bad at it.

This article was originally published on Joystiq.