AnnaLynne McCord and Sisters Party Hard for Halloween (PHOTOS)

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Are those the McCord sisters, or a gaggle of over-the-top Victorian barmaids?

90210 hottie AnnaLynne McCord and her sisters Angel and Rachel were all sorts of decked out for a Halloween-inspired costume bash at Pure Nightclub in Las Vegas. The trio went with a resounding theme of frills, lace, triangle hats and corsets — showing that while they’re young Hollywood, they certainly know how to get dolled up like times of the past.

Las Vegas on Friday night was a hotbed of Halloween activity. Jersey Shore star JWoww and her man Roger went gangster chic  — perhaps inspired by Boardwalk Empire — as they hit up the Chateau Nightclub & Gardens at the Paris Hotel.

Are you prepping a sweet Halloween costume for yourself? Be sure to submit photos to Celebuzz’s Costuming With the Kardashians contest for your chance to win big!