Blonde on Blonde: Kristin Cavallari Slams Jessica Simpson

Here we go again.  In Hollywood - it's no fun without a catfight and reportedly there is one brewing between the young and beautiful Kristin Cavallari and her would-be rival Jessica Simpson.

Kristin still after Nick?

And guess what the battle is over - why Nick Lachey of course.

A report claims that it's "not over between Nick and Kristin."

So what does Kristin do - slams Jessica.  "Kristin thinks Jessica is pathetic for wearing Nick's ring around her neck, like she's in high school," an insider dishes to the American tabloid 'The Enquirer.'

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Tough talk from the nineteen year-old.

Another source reveled to the magazine that Kristin was loudly making fun of Jess at LA's Enterprise Fish Co. (so loud it could be easily overheard the report reads).  "She said Jessica's a bad actress" and was mocking that "silly new red hairstyle."

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The funny thing about the report - Nick reportedly sent a text message to Kristin to join him at the LA hot spot Mood, but due to the crackdown of underage drinking at LA clubs the youngster couldn't get in.

Seems as if Jess has the last laugh on this one for more than one reason.  Kristin can't go clubbing and Jess has removed her ring from and one report claims she will auction it off for her charity 'Operation Smile.'

--Tina Sims