By Leah Ornstein - Radar Style & Beauty Editor
Do we smell a catfight?
Kelly Osbourne, who has suffered a very public battle with her own weight throughout her life, lashed out at her former friend Christina Aguilera recently, calling her a "fat b*tch" on E!'s Fashion Police.
After Joan Rivers commented that Aguilera looked "stuffed into" a little black Givenchy dress at a Munich event last month, likening her to "Snooki's Scandinavian cousin" Kelly chimed in: "Maybe she is just becoming the fat b*tch she was born to be. I don't know. She was a c**t to me."
"She called me fat for so many f***ing years," she continued, "so you know what? F**k you, you're fat too."
Kelly opened-up last year over her misery concerning her weight issues. "I took more hell for being fat than I did for being an absolute raging drug addict," she said, recalling "some horrible obnoxious teenager" screaming out of a car window: "You're fat!"
"I went to my parents bawling," she said. "I would rather be called ugly than be called fat!"'
Aguilera and Osbourne have been at odds for several years, with their famous feud dating back to 2002, when Kelly slammed the singer on The Osbournes TV show.