Who's Bitching About Sienna?

Sienna MillerAs a breed, celebrities clearly don't stick together.

And the latest news of an A-list spat comes from the British chicks' camp.

Eavesdroppers propping up the bar at the Ritz in Paris have reported how Kate Moss and her mates were enjoying a bit of a chuckle at Sienna Miller's expense.

The Daily Mail reports what their source overheard: "Kate and her friends were pretty loud and not very discreet...

"Someone mentioned Sienna and the rumours that she has split with Jude. The whole gang burst out laughing.

"Kate made a catty remark about how Sienna didn't deserve to be gracing the covers of so many magazines. She added that she hoped that, after splitting with Jude, Sienna would not be hanging around with her set any more."

Kate MossThe Mail's source also goes on to reveal that Kate said: "Sienna isn't a real model, she's an actress. It should be me doing magazine work; not Sienna. She should just do films."

The tale-teller concludes: "It was pretty evident to everyone at the bar that there is no love lost between them. There clearly exists a massive rivalry."