British Prime Minister &lt;a gi-track='captionPersonalityLinkClicked' href=/galleries/search?phrase=David+Cameron+-+Homme+politique&amp;family=editorial&amp;specificpeople=227076 ng-click='$event.stopPropagation()'&gt;David Cameron&lt;/a&gt;'s shirt comes undone after delivering a speech to guests in the Guildhall during The Lord Mayor's Banquet on November 12, 2012 in London, England. The New Lord Mayor of London Roger Gifford is hosting the annual Lord Mayor's Banquet in London's Guildhall which will feature speeches from the Prime Minister and the Archbishop of Canterbury.