Kelly Osbourne is known to be brutal and straightforward and she proved just that because recently called out her father's alleged mistress in one of the most brutal ways she can, by tweeting the alleged mistress' phone number to her millions of Twitter followers.

Earlier this month Kelly's parents, Sharon and Ozzy Osbourne announced that they were filing for divorce after almost 33 years of marriage with Ozzy's alleged affair with hairstylist Michelle Pugh as one of the reasons.

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Kelly, who is turning 32 years old this year tweeted Pugh's number with the caption "If anyone is looking for cheap and chunky LOW-lights, a blowout and a blowjob call +1 (323)9282323."

The tweet seemed to have opened a Pandora's box especially after a number of her followers called her out, the Fashion Police host was forced to engage in dialogue with her vocal followers.

One fan tweeted her by saying "Hate your father, not her because HE did this to you and your family...again" to which Kelly answered "Are you in my family? No, you're not and you have no idea what she did! So you can keep your high and mighty opinions to yourself."

Kelly did not stop there and even accused Pugh of assaulting her father stating that Ozzy is already 70 years old while Pugh is 45 years old.

On Tuesday, it was revealed that Ozzy has ended his relationship with the hairstylist in an attempt to save his marriage with Sharon as well as save his relationship with their children.

TagsKelly Osbourne, Ozzy Osbourne, Sharon Osbourne