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No Doubt singer Gwen Stefani pushes her son Zuma through Heathrow Airport after arriving on a flight from Los Angeles on October 31, 2012 in London, England. (FameFlynet)
Katy Perry goes to a Halloween Party at the Hollywood Forever Cemetary. (SplashNews)
Scott Disick & Kourtney Kardashain (SplashNews)
Chris Brown (Instagram)
Paris Hilton & River Viiperi (FameFlynet)
Lady GaGa (Twitter)
Selena Gomez (Twitter)
Lucy Hale (Twitter)
Katy Perry (Twitter)
Rihanna (SplashNews)
Nina Dobrev (Twitter)
Gwen Stefani (Twitter)
Lisa Vanderpump (Twitter)
Kourtney & Kim Kardashian (SplashNews)
Rose McGowen (FameFlynet)
Jenny McCarthy (FameFlynet)
Jef Holm (Twitter)
Jamie Hince & Kate Moss (FameFlynet)
Emily Maynard and daughter Ricki (Twitter)
Kim Kardashian dressed as Cat Woman at her Halloween birthday party. (SplashNews)
Fergie and Josh Duhamel (SplashNews)
Gavin Rossale (FameFlynet)
Jenni “JWoww” Farley celebrate Halloween at Chateau Nightclub in Las Vegas. (SplashNews)
Aubrey O'Day was dressed in an Indian costume as she arrived for the Roosevelt Hotel's annual Halloween party in Hollywood, CA. (SplashNews)
Selena Gomez and friends on Halloween (Instagram)
Selena Gomez and friends on Halloween (Instagram)
Joe Jonas as Tiger Woods (Instagram)
Scott Disick throws money on crowd and swings fake axe at friend at Halloween bash in Las Vegas. (SplashNews)
Darren Criss from “Glee” was dressed like a Boy Scout as he was seen leaving fellow cast mate Matthew Morrison's Halloween party in Hollywood, CA. (SplashNews)
Karrueche Tran as a cat. (Courtesy of Twitter)
Jessica Alba, Cash Warren, and their kids. (Courtesy of Twitter)
Christina Aguilera and Matthew Rulter leave Christina's house on their way to a Halloween party. (SplashNews)
Emma Robert and Evan Peters. (SplashNews)
Kanye West and Kim Kardashian. (FameFlynet)
Liam Payne and Tom Daley. (FameFlynet)
Fergie and husband Josh Duhamel. (FameFlynet)
Ryan Seacrest and Julianne Hough as Bonnie and Clyde. (FameFlynet)
David Spade as Honey Boo Boo's Dad. (FameFlynet)
Seal and an unidentified date as basketball players. (FameFlynet)
Paris Hilton and River Viiperi as Alice In Wonderland and the Mad Hatter. (FameFlynet)
Hilary Duff (FameFlynet)
Julianne Hough and Maria Menounos as Bonnie and a Zombie. (FameFlynet)
Derek Hough as Luke Skywalker. (FameFlynet)
Alessandra Ambrosio and Jamie Mazur. (FameFlynet)
Fergie as a cat. (Courtesy of Twitter)
Miley Cyrus (Twitter)
Paris Hilton & River Viiperi (FameFlynet)
Stacy Keibler (FameFlynet)
Mariah Carey & Nick Cannon (Twitter)
Chris Colfer (Twitter)
Kristen Stewart At The Four Seasons Bevery Hills Without Robert Pattinson — Pics
Next GalleryNo Doubt singer Gwen Stefani pushes her son Zuma through Heathrow Airport after arriving on a flight from Los Angeles on October 31, 2012 in London, England. (FameFlynet)
Katy Perry goes to a Halloween Party at the Hollywood Forever Cemetary. (SplashNews)
Scott Disick & Kourtney Kardashain (SplashNews)
Chris Brown (Instagram)
Paris Hilton & River Viiperi (FameFlynet)
Lady GaGa (Twitter)
Selena Gomez (Twitter)
Lucy Hale (Twitter)
Katy Perry (Twitter)
Rihanna (SplashNews)
Nina Dobrev (Twitter)
Gwen Stefani (Twitter)
Lisa Vanderpump (Twitter)
Kourtney & Kim Kardashian (SplashNews)
Rose McGowen (FameFlynet)
Jenny McCarthy (FameFlynet)
Jef Holm (Twitter)
Jamie Hince & Kate Moss (FameFlynet)
Emily Maynard and daughter Ricki (Twitter)
Kim Kardashian dressed as Cat Woman at her Halloween birthday party. (SplashNews)
Fergie and Josh Duhamel (SplashNews)
Gavin Rossale (FameFlynet)
Jenni “JWoww” Farley celebrate Halloween at Chateau Nightclub in Las Vegas. (SplashNews)
Aubrey O'Day was dressed in an Indian costume as she arrived for the Roosevelt Hotel's annual Halloween party in Hollywood, CA. (SplashNews)
Selena Gomez and friends on Halloween (Instagram)
Selena Gomez and friends on Halloween (Instagram)
Joe Jonas as Tiger Woods (Instagram)
Scott Disick throws money on crowd and swings fake axe at friend at Halloween bash in Las Vegas. (SplashNews)
Darren Criss from “Glee” was dressed like a Boy Scout as he was seen leaving fellow cast mate Matthew Morrison's Halloween party in Hollywood, CA. (SplashNews)
Karrueche Tran as a cat. (Courtesy of Twitter)
Jessica Alba, Cash Warren, and their kids. (Courtesy of Twitter)
Christina Aguilera and Matthew Rulter leave Christina's house on their way to a Halloween party. (SplashNews)
Emma Robert and Evan Peters. (SplashNews)
Kanye West and Kim Kardashian. (FameFlynet)
Liam Payne and Tom Daley. (FameFlynet)
Fergie and husband Josh Duhamel. (FameFlynet)
Ryan Seacrest and Julianne Hough as Bonnie and Clyde. (FameFlynet)
David Spade as Honey Boo Boo's Dad. (FameFlynet)
Seal and an unidentified date as basketball players. (FameFlynet)
Paris Hilton and River Viiperi as Alice In Wonderland and the Mad Hatter. (FameFlynet)
Hilary Duff (FameFlynet)
Julianne Hough and Maria Menounos as Bonnie and a Zombie. (FameFlynet)
Derek Hough as Luke Skywalker. (FameFlynet)
Alessandra Ambrosio and Jamie Mazur. (FameFlynet)
Fergie as a cat. (Courtesy of Twitter)
Miley Cyrus (Twitter)
Paris Hilton & River Viiperi (FameFlynet)
Stacy Keibler (FameFlynet)
Mariah Carey & Nick Cannon (Twitter)
Chris Colfer (Twitter)
