Sharon Osbourne has criticised Lady Gaga's anti-bullying campaign, calling it a "publicity stunt".

The 60-year-old slammed Gaga in her upcoming book 'Unbreakable', the Mirror reported.
The feud between the two started when Gaga sent an open letter to Sharon's daughter Kelly Osbourne, in response to her comments about the pop singer's weight gain last year.
Kelly revealed that Gaga's fans, known as 'little monsters', sent her death threats via Twitter after her comments, which led to a series of public letter of criticism from both sides.
Meanwhile, Sharon admitted that she called Gaga "a hypocrite" because by not repudiating her fans bullying, she was overlooking it.
The 'X Factor' judge said that she was so disappointed because she had always been her huge fan.
She added that she felt that Gaga's mobile counselling stations which were placed at each venue during her last tour were a "publicity stunt".

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