Ozzy Osbourne's memory is so poor he struggles to remember the near-tragedies that have struck his family over the past five years.

The Black Sabbath frontman recalls nothing about his wife SHARON's cancer battle or his own brush with death, and he even struggles to remember what year it is.

He says, "It's only coming to the end of 19... 2000. God, I can't think, yes 2005.

"In the last five-and-a-half years, so many unbelievable things have happened to my family. Sharon got cancer; she recovered from that. I nearly killed myself going three miles an hour on my quad bike.

"I can't even remember it happening. I can't even watch the film of it."