Who cares about the costume when your eyeliner could be as scary as Rita Ora's!

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Halloween Makeup Ideas: 20 Spooky Celeb Looks Featuring Lady Gaga, Rihanna And Nicki MInaj

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See the full gallery: Halloween Makeup Ideas: 20 Spooky Celeb Looks Featuring Lady Gaga, Rihanna And Nicki MInaj