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Celebrity gossip, a great catfight between Kate Hudson and Cameron Diaz. It's said that Kate Hudson "hates" Cameron Diaz for dating her ex-boyfriend, Alex Rodriguez.

The claws have come out between Kate Hudson and Cameron Diaz.

The feud between blond beauties began after Hudson saw photographs of Diaz sneaking out of Alex Rodriguez's Manhattan apartment with overnight bags in tow May 2, Us Weekly reports.

Hudson, 31, who dated the Yankees slugger last year, is reportedly "pissed" at Diaz for moving in on her ex only months after their December breakup.

In fact, the "Nine" star is said to believe that Diaz is only rounding the bases with the athlete out of revenge.

Back in 2007, Hudson allegedly hooked up with Justin Timberlake just days after he and Diaz ended their four-year relationship.

"Kate hates Cameron," an insider said. "She thinks it's payback, pure and simple."

However, those on Team Cameron say there's a big difference between a committed relationship and a fizzled out fling.

"Cameron was actually in a serious long-term relationship with Justin," a Diaz pal said. "She thinks it's a joke Kate would be mad. Kate is only upset because she hates being single."

Diaz, 37, and A-Rod, 34, have kept a low profile since they were first spotted dirty dancing in February at a Super Bowl party in Miami.

According to Us, the undercover lovers were recently holed up in a luxury suite at Boston's Liberty Hotel, where they "didn't even surface for food."

More like the battle of the desperate. When will these little hollywood ho3s understand taking someone elses left overs - will soon only make you sick and spit it back up of regretfulness! These guys hop in bed with these needy girls bone one and then the other; and now a big fight is going.