Happy Halloween! Lots of celebrities were out partying over the weekend dressed in some fabulous costumes

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Kim Kardashian became Poison Ivy to host the Midori Green Halloween party in New York

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Gwen Stefani embraced her inner Disney princess and became Cinderella for Kate Hudson's Halloween party

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Nicole Richie transformed into JLo from her Jenny from the block days in a pink velour tracksuit and aviators complete with obligatory bling

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Modern Family's Sofia Vergara posted a picture of herself dressed in her angry birds costume on twitter

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Bette Midler wore an eye catching colourful headdress at her annual Hulaween benefit gala in New York

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The hosts of the Fashion Police dressed as their favourite stars, Joan Rivers became Suri Cruise! Kelly O and George were JLo and Marc Anthony, and Giuliana channeled Victoria Beckham
Did you dress up for Halloween?