Jay McGuinness chose a smart coat and blue jeans to perform to the 16,000 people in the O2 crowd. This image appears in the gallery:The Wanted At the Jingle Bell Ball 2012 - Pictures 9. Jay McGuinness chose a smart coat and blue jeans to perform to the 16,000 people in the O2 crowd. Picture: PA Photos 22 images See the full gallery: The Wanted At the Jingle Bell Ball 2012 - Pictures