Kelly Osbourne has tweeted the mobile number of her dad Ozzy Osbourne's alleged mistress.

Sharon Osbourne

Sharon Osbourne

The angry fashion designer has lashed out on Twitter and posted the digits of hairdresser Michelle Pugh, who she believes was sleeping with the Black Sabbath legend behind her mother Sharon's back.

A furious Kelly raged to her four million followers on Monday (23.05.16): "Anyone looking for cheap chunky LOW-lights a blow out and a blowjob call *********** (sic)"The number has now been disconnected.A fan called Terri questioned her actions and accused her of being "childish" and wrote: "@KellyOsbourne hate your father not the woman.. HE did this 2 ur family ... Again. #SMDH #childishBut Kelly shot back: "@tldoyle1271 are you in my family? NO YOU ARE NOT YOU HAVE NO IDEA WHAT SHE DID! So keep ur high-mighty opinions to yourself!"

Meanwhile, a source told US Weekly: "Kelly is trying to protect her family!"

And the outspoken star has supported her mother throughout the ordeal after Sharon, 63, found out about Ozzy's alleged affair by reportedly searching through his emails.

Ozzy, 67, had allegedly been sleeping with his hairdresser for a while and Sharon even discovered he had been "supporting" the woman.

A source previously revealed: "Sharon found out about the affair by searching through Ozzy's emails. She was upset that he was supporting this woman!"

After she found out about her spouse's alleged infidelity, Sharon - who has grown-up children Kelly, 31, Aimee, 32 and Jack, 30, with Ozzy - bombarded Michelle's place of work, believed to be the posh Mêche Salon in Beverly Hills, with phone calls and subsequently had her fired.

The insider explained: "She and [daughter] Kelly both called the salon repeatedly for about two weeks before the news broke, trying to get in touch with Michelle. They were really angry. Sharon is the reason Michelle was let go."

Sharon confirmed she'd split from the 'Paranoid' hitmaker, whom she married in 1982, on her chat show 'The Talk' earlier this month as she thanked fans for their support.

However, the TV presenter and 'Paranoid' hitmaker were spotted together in Beverley Hills on Friday (20.05.16) sparking rumours they are on the path to reconciliation, despite the fact Sharon has met and interviewed numerous lawyers.

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