Sharon Osbourne has spoken out against Lady Gaga, calling her a "hypocrite" following comments from her fans about her daughter, Kelly.

The 60-year-old X Factor judge told The Sun: "By not repudiating her fans' bullying, she was condoning it. That's why I called her a hypocrite.

"I was so disappointed because I had always been a huge fan. I have been to three of her shows and she's undeniably a very talented woman.

"But you can't bang on about being anti-bullying and then refuse to tell your fans to stop haranguing other young women with nasty threats."

Osbourne was referring to comments that Lady Gaga's fans sent to Kelly via Twitter last year after Kelly made comments on the Born This Way singer's weight.