kelly osbourne christina aguilera Kelly Osbourne calls Christina Aguilera 'fat' on 'Fashion Police'
Talk about a feud that just won’t end!

It’s no secret that Kelly Osbourne and Christina Aguilera do not like each other. The two have been fighting for years, but the claws came out once again during a recent taping of E!’s “Fashion Police.

Osbourne, one of the of the show’s fashion critics, brought some extra baggage when critiquing the form-fitting black dress Aguilera wore to her Munich fragrance launch.

“Maybe she is just becoming the fat b***h she was born to be. I don’t know,” Osbourne lashes out.

Ouch. It didn’t stop there, either. Something tells us this is much more than just being fired up over some fashion choices.

“She called me fat for so many f***ing years,” she continues, “so you know what? F**k you! You’re fat, too.”

Low blow coming from someone who has openly struggled with her weight, but these two have been going at it all the way back to 2002 when Kelly fought with the singer on “The Osbournes” reality show.

And the battle rages on.

Posted by:Jen Blushi