AceShowbiz -

Sharon Osbourne can't be upset at Kelly Osbourne for trashing Ozzy Osbourne's alleged mistress on Twitter. On Monday, May 23, the actress/fashion designer tweeted out the phone number of L.A.-based hairstylist Michelle Pugh and her mother found it funny.

Co-hosting daytime talk show "The Talk" on Tuesday, Sharon responded to Kelly's action. "Oh, Kelly has the best sense of humor ever. And you know what? In cases like this, what can you do but laugh? You have to laugh. She is just so funny," she said, defending her daughter after several people criticized Kelly for blaming Michelle for her parents' wrecked marriage.

Co-host Sara Gilbert agreed, saying, "She's got your back." Sharon added, "She loves her mom and loves her dad so much and listen, I'm always proud of my girl. What are you going to do? Be angry with her because she loves her mom and dad and she wants us to be together? She loves us. She can do what she wants. She's an adult."

Kelly tweeted on Monday, "Anyone looking for cheap chunky LOW-lights a blow out and a blowjob call...," along with a Los Angeles phone number. When a commenter pointed out that her father Ozzy was also at fault for the affair, she responded, "are you in my family? NO YOU ARE NOT YOU HAVE NO IDEA WHAT SHE DID! So keep ur high-mighty opinions to yourself!"