LONDON, ENGLAND - NOVEMBER 19: (EMBARGOED FOR PUBLICATION IN UK TABLOID NEWSPAPERS UNTIL 48 HOURS AFTER CREATE DATE AND TIME. MANDATORY CREDIT PHOTO BY DAVE M. BENETT/WIREIMAGE REQUIRED) Singer Rihanna (L) switches on the Christmas lights at Westfield Stratford City with Steve Hargrave (C) and young ambassadors from Save The Children, Westfield's chosen Christmas charity, on November 19, 2012 in London, England. (Photo by Dave M. Benett/WireImage)
