Sharon Osbourne has launched an attack on Lady Gaga, accusing the singer of being desperate for attention after openly criticizing her daughter, Kelly.

Sharon Osbourne published a letter to Lady Gaga on Thursday after Kelly and Gaga traded barbs.

“I am calling you a bully because you have 32 million followers hanging on your every word and you are criticizing Kelly,” Sharon Osbourne writes, asking: “Are you so desperate that you needed to make this public?”

The controversy erupted after Kelly Osbourne made comments about Lady Gaga’s weight gain late last year.

Speaking to Alan Carr for his Channel 4 chat show, Kelly Osbourne said: “I think she is pregnant because she has been covering up this part of her body recently and I have been noticing that a lot.”

Kelly Osbourne was referring to a photo of Lady Gaga wearing a burka to a London Fashion Week event.

“And her style has changed and you can’t bleach your hair blonde when you are pregnant,” she added.

Lady Gaga’s furious “little monster” fans responded with frightening death threats, prompting Sharon Osbourne to write the singer’s manager.

In an email to Vince Hebert sent on Thursday, Sharon Osbourne reminds him that she wrote last year about Lady Gaga’s fans bullying Kelly online, and complains that he “never really responded”.

“Well, it’s continuing again. I want you to read the blog below from a Lady Gaga fan,” she continues.

Sharon Osbourne includes a tweet: “Little Monster David @LilMonsterMaren @MissKellyO LITTLE MONSTER ARTPOP : Kelly Osbourne needs to kill herself”, with a link to a vitriolic post aimed at her daughter, calling her “an ugly whore” who “deserves to be hit by a car and die of AIDS”, while asking others to fill in the blank of what they think of Kelly.

Cruel taunts flood the page.

Sharon Osbourne continues: “I thought that Gaga was a main campaigner against bullying.

“Vince, I’m leaving it in your hands to do the right thing here. One tweet from Gaga can change this whole situation. I’m not asking her to deal with this directly but she if she could tweet something to her fans about being more respectful that may end this. I’m sure she doesn’t condone her fans saying such hideously offensive things.”

Vince Hebert responds with a curt: “I’m on it.”

Next, Lady Gaga, real name Stefanie Germanotta, responds in the form of an open letter on LittleMonsters.com, addressing Kelly Osbourne and stating she wished the television star had reached out to her personally.

“As the head of the Born This Way foundation with my mother Cynthia we would like to respond,” she writes, contending that it is part of her mission in life to “work towards a kinder and braver world with our community of followers”.

Sharon Osbourne has launched an attack on Lady Gaga, accusing the singer of being desperate for attention after openly criticizing her daughter, Kelly

Lady Gaga notes Kelly Osbourne has “chosen a less compassionate path”, and criticizes her work as a correspondent on E!’s Fashion Police, calling it “rooted in criticism, judgment, and rating people’s beauty against one another”.

“Your show breeds negativity, and over the years has even become comedic in nature. It glorifies you and Joan Rivers pointing in the camera, laughing, and making jokes about artists and celebrities as if we are zoo animals,” she continues.

Referring to Kelly Osbourne’s weight loss over the years, she asks: “To see you blossoming into a beautiful slender woman who makes fun of others for a living is astounding. Why not help others? Why not defend others who are bullied for their image and share your story?”

Lady Gaga says she has met Kelly Osbourne in person, calling her “lovely”, and asks that they both do their part do their part ‘to set a standard of respect, compassion, and love’.

Sharon Osbourne responded with her own open letter on Facebook, not taking Lady Gaga’s words in kind.

“I am perplexed as to why you would go public with an open letter,” she writes, calling it “hypocritical and full of contradictions”.

“How sweet that you have empathy for my daughter, as you feel that she has taken a less passionate path in life,” she continues.

Sharon Osbourne goes on to criticize Lady Gaga’s fashion choices, stating she was “sickened” when she saw the singer’s infamous meat dress at the 2010 MTV Music Video Awards.

“When I see you wearing fur, and using it as a fashion statement, the fact that defenseless animals have been killed so you can get your picture in the press is abhorrent to me,” Sharon Osbourne  writes, asking: “Shouldn’t you be teaching your “little monster” fans to respect animals and life?”

The matriarch refuses to justify Kelly Osbourne’s career choices, and slams her for making the issue public.

“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. 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?”

Sharon Osbourne continues: “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. I’m an open playing field for you my darling. Sincerely, Sharon Osbourne.”

Lady Gaga and her mother had not issued comment at press time.

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