Kelly Osbourne, who celebrated her 29th birthday on Sunday, October 27, reacted coldly after Lady GaGa presented her mother Sharon Osbourne with a birthday cake which had "Happy birthday Kelly" message written on it. The "Applause" singer gave Sharon the cake as she appeared on U.K.'s "The X Factor" where Sharon was a judge.
"Blown away by Lady Gaga's performance and graciousness," Sharon wrote on Twitter. Her daughter, however, apparently did not feel the same. "Not to be ungrateful but why would you send me a birthday cake via my MOTHER in a country half the would away? #JustSendItToME #LoveNotWar," Kelly tweeted.
The fashion designer also shared a photo of the cake on Instagram, captioning the snap with hashtags, "EatMyS**t" and "Hypocrisy." She added in several Twitter posts, "#StefaniStopIt! You are so far behind you think you are first! I live for a #Cause not for the #Applause!!!!!!!"
The Mother Monster replied to Kelly's tweet, saying that she meant well. The singer wrote, "I didn't know it was your B-day until this afternoon. Meant as a peace offering. Happy Birthday." She attached a photo of her and Sharon posing with the birthday cake.
"Monsters, please just focus on the positive of tonight's performance and do not send any hateful messages. I don't support it. #SpreadLove," she added in another post later after learning that her fans began attacking Kelly.