Must-See: Reese Witherspoon Curses and Lets Loose After the Met Gala (Video)

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Reese Witherspoon, is that you?!

The Oscar-winning actress, 38, was caught on tape having a really good time after the Met Gala in New York City Monday, when she clearly let loose in an elevator full of her famous friends Cara Delevingne, Zooey Deschanel and Kate Upton.

Video: Exclusive -- Reese Takes on West Memphis Three in 'Devil's Knot'

In these now infamous videos which Cara initially posted on her Instagram and have since been removed, Cara asks Reese to pronounce her famously difficult last name in an elevator on the way to Rihanna's after-party.

"If you force me to say your last name, I'll be f*cked," Reese says candidly.

And after a few botched attempts, she hilariously gives up.

"I don't know what your f*cking name is," she puts bluntly.

Related: Reese Reacts to Arrest: 'I'm Deeply Embarrassed'

… You have to admit – Reese definitely seems like someone you want to party with.