Supermodels, socialites, and other spookily attractive New Yorkers kicked off this weekend's Halloween festivities at Interview Magazine's glam "Enter If You Dare" party. Hosted at the Gramercy Park Hotel's newly revamped lounge, Rose Bar, the exclusive bash quickly turned into an all-out rager, with guests tearing up the floor and popping bottles, lit by eerie red and green lights, and of course a shimmering disco ball.

Olivia Palermo's sharp-jawlined hubby, Johannes Huebl, was in attendance, as well as Tiffany Trump BFFs, Andrew Warren and Peter Brant II. While blood-splattered revelers danced the night away to tunes curated by DJ collective, Supply NY, the bar served up thematic cocktails with Belvedere vodka and Volcan tequila, with apt titles including "The Dracula" and "Monster Margarita."

Click through for an inside look!

[Photos by Kenny P. Chen]