Michelle and Barack Obama
celebrity fashion,Michelle Obama
Michelle and Barack Obama
It\'s that time of year again, when everyone abandons their personal style and wears fun, spooky and, in some cases, downright tacky fancy dress costumes for Halloween. The stars were out in force on both sides of the pond to celebrate All Hallows Eve with many almost unrecognisable from their usual groomed to perfection look. Read on to see our pick of the best celebrity Halloween costumes. Be afraid, be very afraid.
Picture: America\'s First Lady channels Catwoman in a leopard print top, black leggings and furry feline ears for a trick or treating session at the White House.
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Agyness Deyn and Alexa Chung
celebrity fashion,Agyness Deyn,Alexa Chung
Agyness Deyn and Alexa Chung
The two British stars dressed up as Wayne\'s World characters Wayne Campbell (Agyness) and Garth Algar (Alexa) to attend the Heroes vs Villains party at the Gramercy Park Hotel in New York.
Fashion face-off! Agyness Deyn vs Alexa Chung
Star style: Alexa Chung conquers New York
Seal and Heidi Klum
Heidi Klum,celebrity fashion,seal
Seal and Heidi Klum
The married couple threw their 10th annual Halloween bash in Los Angeles, California. The hosts wore matching raven costumes. Scary.
Jarvis Cocker and guest
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Jarvis Cocker and guest
The former Pulp frontman and his mystery companion rocked up to TV presenter Jonathan Ross\' Halloween party as a pair of gruesome, blood-splattered doctors.
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Kylie Minogue and Fergie
Kylie Minogue,Fergie,celebrity fashion
Kylie Minogue and Fergie
The musical duo (who knew these two were such good friends?) attended a Halloween party in New York over the weekend dressed up as a Beetlejuice-type character and Cleopatra respectively.
Helena Christensen
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Helena Christensen
The model dressed as a paint palette, complete with paintbrushes stuck to her T-shirt and multi-coloured hair, to go trick or treating in New York.
Aaron Johnson and Sam Taylor-Wood
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Aaron Johnson and Sam Taylor-Wood
The Turner Prize nominated artist and her 19-year-old fiancé also attended Jonathan Ross\' party, dressing up as Little Red Riding Hood and the Wolf.
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Heidi Klum and Jessica Alba
Jessica Alba,Heidi Klum,celebrity fashion
Heidi Klum and Jessica Alba
The model and actress, dressed as the children\'s TV character Dora the Explorer, pose for the cameras at Klum\'s Halloween party.
Perez Hilton
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Perez Hilton
The celebrity blogger, who\'s now arguably as famous as his subjects, poses on the red carpet at Heidi Klum\'s Halloween bash channelling his obsession, Lady Gaga.
Fashion face-off! Rihanna vs Lady Gaga
Gwen Stefani
Gwen Stefani,celebrity fashion
Gwen Stefani
The mum of two transformed into Jessie, the Yodeling Cowgirl, from Toy Story 2 to have fun at Halloween with son Kingston, who dressed as a dinosaur. Just. Too. Cute.
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Jonathan Ross
Jonathan Ross,celebrity fashion
Jonathan Ross
The TV host threw a Halloween party at his house and plumped for an Edward Scissorhands costume to try and scare the kids.
Rihanna
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Rihanna
The R&B singer wore a typically sexy outfit for Halloween with oodles of flesh on show and a tiger\'s tail.
Fashion face-off! Rihanna vs Lady Gaga
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Rupert Grint
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Rupert Grint
The Harry Potter star attended a Halloween party in London over the weekend dressed as Alex DeLarge, the anti-hero from Stanley Kubrick\'s classic film, A Clockwork Orange.
Christina Aguilera
Christina Aguilera,celebrity fashion
Christina Aguilera
The songstress took son Max out trick or treating in matching skeleton outfits.
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