Sharon Osbourne has branded Lady Gaga an "attention seeker" and a "bully" for making comments about her daughter Kelly.
The mother of the Fashion Police TV presenter has hit back after Gaga published an open letter on her website – which was later taken down – calling for Kelly to be more positive on the fashion television programme.
In her Facebook post, Sharon accused Gaga of being a fame-hungry hypocrite for openly expressing her opinion of Kelly.
"By your actions to Kelly right now, you have shown me that you are nothing more than a publicly seeking hypocrite and an attention seeker. You know it would have been much more dignified of you to do this privately," Sharon ranted on Facebook.
"I am calling you a bully because you have 32 million followers hanging on your every word and you are criticizing Kelly in your open letter. Are you so desperate that you needed to make this public?
"In her letter, Gaga blamed Kelly for "breeding negativity" by appearing on the celebrity critiquing show Fashion Police.
The pop star - who is known for launching her crusade against bullying the Born This Way Foundation - also slated Kelly for making comments about Gaga’s recent weight gain.
Gaga's letter prompted her fans to target Kelly on Twitter with a string of abusive posts and death threats. Sharon has accused Gaga of being fake and called into question the effect she has on her fans.
"You state 'Everyday, through my music and public voice I choose to be positive and work towards a kinder and braver world with our community of followers.' Well this obviously is not translating well to your fans, as a large portion of them have not only been vile to Kelly, but also other celebrities such as Madonna, Adele and Rihanna. 'You say a kinder, braver world' I don’t know what world you live in, but supporting disgraceful fan comments doesn’t fall under the words 'kinder and braver'," Sharon wrote. "It comes under the heading of bulls**t".
The wife of rocker Ozzy Osbourne then slammed Gaga's fashion choices and behaviour before finishing off her open letter by challenging Gaga to reply to her remarks.
"In closing, stop wearing fur, stop looking for publicity, and stop using your fans to belittle not just Kelly but an endless stream of celebrities. A word from you would stop all the hideous, negative and vile threats from your 'little monsters'. Let me know if you want to continue this debate," Sharon prodded. "I’m an open playing field for you, my darling."
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