Kelly Osbourne Unloads on Ozzy's Alleged Mistress, Gives Out Her Phone Number in Twitter Rant

Kelly Osbourne is lashing out at the hair stylist she blames for throwing her parents' 34-year-marriage into crisis.

Read: The Rise of 'Grey Divorce': Why More Couples Over 50 Are Parting Ways

Kelly posted a nasty tweet aimed at 45-year-old Michelle Pugh, who reportedly had an affair with her dad, Ozzy Osbourne.

“Anyone looking for cheap chunky low-lights, a blow out and a blow*** call 1-323-***-****,” she tweeted.

Kelly also warned Pugh: "Don't f*** with my family, don't f***with my momma, and don't f*** with me."

Pugh’s phone has been disconnected since Kelly posted the number.

Both Kelly and Sharon Osbourne used to get their hair done at the upscale salon where Pugh worked.

Reaction on social media is swift, with many telling Kelly she should direct her anger toward her dad and not the alleged other woman.

But Kelly hit back, tweeting: “You have no idea what she did. My father is almost 70. Ever hear of elder abuse?”

Read: Uma Thurman Feeling 'Violated' by Unwanted Kiss From Fiat Heir Lapo Elkann

Sharon spoke out about Kelly’s fury on The Talk Tuesday, saying: "I am always proud of my girl. What are you going to do — be angry with her because she loves her mum and dad and she wants us to be together? She loves us. She can do what she wants. She is an adult."

When Julie Chen read the tweet out loud to the audience, they erupted in massive cheers and applause. 

Sharon and Ozzy are apparently trying to work things out.

They recently appeared together at an event where she announced his band, Black Sabbath, would be performing at his annual Ozzfest later this year in California.

Watch: Woman Reveals Mortifying First Date Bathroom Incident in Twitter Rant