Kelly Osbourne: Knock it Off Lady Gaga!

Kelly Osbourne: Knock it Off Lady Gaga!

Keeping the fire burning, Kelly Osbourne lashed out at Lady Gaga via Twitter after the Just Dance singer sent her a birthday cake over the weekend.

The Fashion Police star posted a nasty message in response to the peace-seeking gesture, as Gaga reportedly sent the Happy Birthday Kelly cake to her mother Sharon in London, England.

Kelly tweeted, Not to be ungrateful but why would you send me a birthday cake via my MOTHER in a country half the world away #JustSendItToME #LoveNotWar #EatMySh*t #Hypocrisy #StefaniStopIt!

The Lady replied, I didnt know it was your B-day until this afternoon. Meant as a peace offering. Happy Birthday.

But Ms. Osbourne wasnt done- she added, You are so far behind you think you are first! I live for a #Cause not for the #Applause!!!!!!!

And it sounds like Mama Osbourne was pro-Gaga on this one- Sharon tweeted, Blown away by Lady Gagas performance and graciousness.