Ozzy Osbourne doesn't remember people the day after he's met them.

The former 'Black Sabbath' frontman said he is terrified of his youngest daughteR Kelly's impending marriage to Luke Worrall, because he may not recall the names of important guests, as his short-term memory was badly damaged following a quad bike accident in 2003.

He is quoted as saying: "My short term memory is zero. Since the accident I can't remember what I did yesterday half the time.

"I can remember my ex-wife's mother's phone number from 1975 but I can't remember what I did last night. When I see people I can say 'Hi, have we met?' And they'll tell me I only saw them the day before.

"It's going to be embarrassing."

Ozzy has also recently confessed he feels he is "living on borrowed time", after living a rock n roll a life of drinking, taking drugs and partying.

He said: "With the drugs, it nearly killed me on a daily basis - I did a lot of heavy drug taking for a long time and I survived it by the grace of God.

"You might not be as lucky as me - I'm living on borrowed time."

Kelly - whom Luke proposed to last November - has previously said they won't rush into getting married because they want to make absolutely certain of their commitment to one another.

She said: "I don't feel the need to get married right away - and a lot of times I find people get married for the wrong reasons."