Kelly Osbourne has blasted a "psycho" fan.

The Fashion Police presenter is being plagued by the woman who has dated one of her ex-boyfriends and has even sent Kelly disgusting drawings of herself engaged in sexual acts with her father Ozzy.

"I have #SingelWhiteFemale from spain I think U crossed the line when U f****d my X & R now drawing pics of U w*****g 2 my dad #MMURPsycho(sic)" Kelly wrote on her Twitter.

The 27-year-old star is yet to add to her tweet or reveal who the woman is.

Kelly split from her ex-fiance Luke Worrall in July 2010 after he cheated on her with transsexual model Elle Schneider. She is now in a relationship with Matthew Mosshart - the brother of The Kills musician Alison Mosshart - after the pair met at Kate Moss' wedding last year.

Kelly introduced Matthew to her parents two months ago and he got the seal of approval from Ozzy and Sharon. "Matthew is the first guy Kelly has ever brought home that every single one of her friends and family like. And he's also the first boyfriend with whom she's had a close relationship with his family," a source said.

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