Osbourne still dissing Aguilera's weight

Reality-show star Kelly Osbourne has escalated her long-simmering feud with Christina Aguilera, firing off profanity-laden comments about the singer's weight.

Osbourne, the daughter of rock legend Ozzy Osbourne and "America's Got Talent" judge Sharon Osbourne, issued her diatribe on a recent episode of E!'s "Fashion Police," on which she is a co-host. Fellow host Joan Rivers, presented with a photo of Aguilera in a Givenchy dress at an event in Germany last month, said it seemed like she had been stuffed into the dress. She jibed, "I think she looks like Snooki's Scandinavian cousin!" prompting Osbourne to announce "Maybe she is just becoming the fat ---- she was born to be!"

To raucous laughter from Rivers and fellow hosts Giuliana Rancic and George Kotsiopoulos, Osbourne continued her foul-mouthed dissing of Aguilera.

The 5-foot-2-inch Osbourne, 26, who last year told Us magazine she once weighed "almost 160 pounds," lost more than 48 while she was a contestant on "Dancing With the Stars" in 2009. She has kept the pounds off, Us said, while Aguilera, 30, has had fluctuating weight.

Osbourne initiated the bad blood between the two when she criticized Aguilera in 2002 on her family's reality show "The Osbournes." By the time of the MTV Awards the following year, the feud was so full-blown Aguilera refused to walk the red carpet if guest VJ Osbourne were present. Mutual sniping followed on air.