Brian Cowen, An Taoiseach na hEireann, the Irish Prime Minister, delivers an impromptu performance of Paddy's Green Shamrock Shore for the judges of Britain's Got Talent - Simon Cowell, Piers Morgan and Amanda Holden, with support from Ant and Dec. His performance receives an uncannily similar reaction to Susan Boyle's rendition of I Dreamed a Dream from Les Miserables...