Lady Gag on stage performing live at the Jingle Bell Ball 2013 at London's O2 Arena. This image appears in the gallery:Amazing Pictures From The 2013 Jingle Bell Ball Sunday Show 9. Lady Gag on stage performing live at the Jingle Bell Ball 2013 at London's O2 Arena. 91 images See the full gallery: Amazing Pictures From The 2013 Jingle Bell Ball Sunday Show