Kelly Osbourne Calls Christina Aguilera a 'Fat Bitch,' and Other Disses Maureen O'Connor · 08/05/11 10:34AM Xtina used to call Kelly fat, and now Kelly is getting her revenge. Marc Anthony begs to get J.Lo back. Nicki Minaj has a nip slip. Kate Bosworth has turquoise hair. Nicole Richie makes fat jokes about Jessica Simpson. TGIFriday gossip.