Ozzy Osbourne's former mistress is taking further legal action against his daughter Kelly

Michelle's attorney Edie Mermelstein told People magazine in a statement: "Yes, we have free speech in this country but when speech is hate speech or it's defamatory or incites bullying or discloses personal information that's when it rises to a different level. Kelly published Michelle's private information."

The court documents accuse Kelly of using her Twitter account to "paint a target" on Michelle as a "publicity stunt for financial gain" when she leaked the number back in May.

And the hairdresser also accused Kelly of disregarding both Twitter's policies and a cease and desist letter she received from her lawyers.

Michelle further accused Kelly of using software to unblock listed numbers to obtain her private number, and insisted the row was a "choreographed media play" because her book deal was announced less than a month after the offending tweets were published.

She also said the 31-year-old star had "violated her right to privacy," impacted her ability to obtain work and caused "severe emotional distress."

The legal complaint accuses Kelly of public disclosure of private facts, negligent interference with prospective economic relations and intentional infliction of emotional distress.

In her legal documents, Michelle also took a swipe at Ozzy - who briefly split from wife Sharon when the affair became public knowledge, but they have now reconciled - and accused him of wooing her with "false promises and false representations".

Michelle previously insisted she didn't "regret anything" about her affair with the rocker.

She said: "You happen to meet someone and you have an amazing connection and it's not desirable to act upon it. End of story.

"Do I realise that certain people will not understand? Yes. I am not asking for anyone's approval.

"Love is never a mistake. Even when it's messy and even when it hurts."

Michelle's number was previously disconnected after Kelly tweeted: "Anyone looking for cheap chunky LOW-lights a blow out and a blowjob call *********** (sic)"