LONDON, ENGLAND - OCTOBER 29: Jemima Khan attends the UNICEF Halloween Ball at One Mayfair on October 29, 2015 in London, England. (Photo by Karwai Tang/WireImage)
LONDON, ENGLAND - OCTOBER 29: Jemima Khan attends the UNICEF Halloween Ball at One Mayfair on October 29, 2015 in London, England. (Photo by Karwai Tang/WireImage)