Los Angeles - Kelly Osbourne has tweeted the mobile number of her dad Ozzy Osbourne's alleged mistress.
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: "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 (sic)"
Kelly shot back with: "@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! (sic)"
And that's not the only back lash Kelly has received since the tweet. Another fan tweeted saying "it takes two to tango" while another called her a bully.
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.