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LONDON, ENGLAND - OCTOBER 29: Little Mix perform at the KISS FM Haunted House Party at SSE Arena on October 29, 2015 in London, England. (Photo by Joseph Okpako/Getty Images)

LONDON, ENGLAND - OCTOBER 29:  Little Mix perform at the KISS FM Haunted House Party at SSE Arena on October 29, 2015 in London, England.  (Photo by Joseph Okpako/Getty Images)