LONDON, ENGLAND - DECEMBER 07: Taylor Swift attends the Jingle Bell Ball at 02 Arena on December 7, 2014 in London, England. (Photo by Eamonn McCormack/WireImage)
LONDON, ENGLAND - DECEMBER 07: Taylor Swift attends the Jingle Bell Ball at 02 Arena on December 7, 2014 in London, England. (Photo by Eamonn McCormack/WireImage)