Kate Hudson's Diva Behavior at The Rachel Zoe Project Party

Kate Hudson shocked partiers Thursday night with her "nasty and rude" demeanor.

Hudson arrived . . . in "an absolutely foul mood," our spy said. Hudson and pal got in an elevator headed to the rooftop party, but the actress became incensed when there were too many people around her.

"In the elevator she kept screeching, ‘I'm freaking out! It's too much!' while waving her arms around." When she arrived at the roof, Hudson shunned the press line, claiming, "I don't do that," before going into a corner and demanding a bodyguard.

Kate was probably just on her period, okay! I know as a female I am not supposed to say something so sexist and ignorant but I was tempted and I surrendered. Willpower isn't my strong suit.

I love all diva stories. I "don't do" long lines, answer dumb questions, take attitude from any security guard or any a-hole period and I'm not even famous. I'd walk around wearing a "I don't do that" shirt that I'd just point to whenever anyone gets too close. Fingersnap. Hair toss.

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