From an interview with Zakk Wylde in Rock Cellar Magazine…
Dude, I have to tell you a funny story.
A while back, Ozzy comes into my studio and he sees these posters on the wall. He looks at the Led Zeppelin one and starts telling me some stories about John Bonham and how they would get f****d up together in the bars.
Then he looks up at this poster I have on the wall of Aleister Crowley, and he goes, “Zakk [assuming Ozzy’s voice], who’s the fucking bald-headed cunt on the wall?”
And I’m just fucking cracking up. So Ozzy says, “What the fuck’s so funny?”
And I said, “Dude, you don’t know who that is?”
Ozzy goes, “Why the fuck should I know who he is? Who the fuck is it?”
So I said, “Ozzy, you’ve only been singing about him for the last 30 fucking years! It’s Aleister Crowley bro!”
There’s a pause, then Ozzy says, “Oh, is that what he looks like?”
I kid you not, brother.