Annalynne Mccord was snapped getting into the Halloween spirit over the weekend as she arrived as Pure Nightclub in Las Vegas to host her festive Haunted Seduction soiree!  The 90210 starlet and her sisters Angel and Rachel McCord hit the red carpet dressed in gorgeous Victorian ensembles. 

annalynne mccord with rachel and angel at pure las vegas for halloween 2011

We're told Annalynne informed reporters that she was dressed as Marie Antoinette for the fun-filled evening and particularly liked the ribbons on her Christian Louboutin heels. 

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Before heading over to Pure, the McCord trio dined at Social House inside Crystals at CityCenter.  The ladies weren't just celebrating Halloween though, the night also served as Rachel’s 23rd birthday bash!  How fun! 

What do you think of Annalynne's Halloween costume?!

Photos Courtesy of Fame Pictures