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.

Kelly wrote on her twitter page: ''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)''

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.

A source previously said: ''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.''