Forget the dancing with the chimp, Natalie let loose last weekend with a group of friends at Aer Lounge. Page Six reports she was a "dancing queen." Here's more:

Last weekend, she hit Aer Lounge at midnight with a group of six friends and proceeded to dance like "a madwoman" on top of a banquette for hours until she almost passed out. Her pals promptly fanned and spritzed the movie princess with ice water to rouse her - and it worked. At 4 a.m., the "V for Vendetta" hottie was spotted at Soho 323 in a frantic "dance-off" with a tattooed member of party promoter David Rodolitz's posse, who hosted the after-hours revelry.

Who knew Natalie was such a wild woman?