Ozzy Osbourne is having none of it.

After Billy Bush took Giuliana Rancic’s side in a Fashion Police controversy on air, Ozzy Osbourne advised Billy Bush Thursday to “lay off” his daughter Kelly Osbourne.

“Stop acting like a b—h,” Ozzy Osbourne tweeted to Bush. “Act like a man. Lay off Kelly or we’ll be going to hospital to get my foot out of your ass. God Bless.”

The tweet, which has since been deleted, came after Bush defended Rancic for how she handled the scandal over her Fashion Police remarks regarding Zendaya’s hair.

Billy Bush called out Kelly Osbourne and another anonymous staff writer during the on-air segment, noting that Giuliana Rancic was treated poorly.

Don't mess with the Osbournes! http://t.co/1vSA6ZQR0y pic.twitter.com/FGizcYK1jq

— Us Weekly (@usweekly) February 28, 2015

According to Us Weekly, Rancic could have avoided the entire Zendaya dreadlocks issue if she had listened to co-host Kelly Osbourne’s recommendation.

.@Zendaya accepts @GiulianaRancic's apology following dreadlocks controversy http://t.co/JyL19MF6Sj pic.twitter.com/CCAuJtrvkW

— People magazine (@people) February 25, 2015

Apparenely, a source from the set of Fashion Police told Us that the comments did not come on-air, but were taped, and taped several times because of the sensitive nature of Rancic’s comments.

“They did the Zendaya segment three times,” the source told Us. “Three different takes. On the first two takes, Kelly said, ‘Guys, we can’t say this. Zendaya is a friend of the show.’

Ozzy Osbourne is not happy with "Access Hollywood's" Billy Bush http://t.co/pbPrEjn4El pic.twitter.com/aG1sf11ZqD

— Page Six (@PageSix) February 27, 2015

Bush reached out to Rancic to get her comments on the allegations that the segment was taped numerous times,which Rancic denied.

The Access Hollywood host then laid into Kelly Osbourne.

Kelly Osbourne has quit #FashionPolice after the Giuliana Rancic controversy: http://t.co/IyMEcSbvOS pic.twitter.com/Tc07TgdqNl

— Us Weekly (@usweekly) February 28, 2015

“And the Kelly Osbourne part… that never occurred,” Bush reported, adding that he “doubts” things were okay between Rancic and her co-host.

“How could it be good?” he asked. “Kelly Osbourne threw her under the bus, in my opinion.”

Cue Ozzy Osbourne’s wrath.

#ICYMI @KellyOsbourne is leaving E!'s #FashionPolice http://t.co/SeBtkpkLMH pic.twitter.com/rsqCaMEIju

— Variety (@Variety) February 28, 2015

Bush further said a staff writer was supposedly involved but remains anonymous.

“Giuliana is taking the hit for this,” he said.

“That joke that Giuliana delivered, it was a written joke,” Bush said. “But that joke was a written joke. Which means there were a lot of people involved — and nobody saw racism.”

Following the episode, Rancic issued a public apology on E! News, which Zendaya accepted in an Instagram post.

A photo posted by Zendaya (@zendaya) on Feb 25, 2015 at 11:22am PST

Kelly Osbourne applauded Rancic for the apology, but has since resigned from the show.

It takes a strong women to apologize & makes a forgiving women even stronger! #ThisTooShallPass

— Kelly Osbourne (@KellyOsbourne) February 26, 2015