On the topic of Ozzy's antics...there are LOTS of stupid shit about him in both his own biography and in The Dirt, the biography by Mötley Crue. Let me give you one example:
One time, Ozzy and Mötley were partying at a bar. There, Ozzy stole some old woman's purse and ran off. When he got back, he was wearing a dress he found in it. He wore that for the entire evening. Later on, he pissed on the sidewalk and then drank it, his own piss! He challanged Nikki Sixx to do the same. But Nikki only got half-way, because Ozzy started to lick HIS piss too.
Just saying, Ozzy is a very, very sick person, regardless of how good of a singer he might be.