Piers causes tears as he tells leader of teenage pop group to ditch bandmates on America's Got Talent

By DAILY MAIL REPORTER Hopefuls: Teenage group Poplyfe took to the stage in scenes on aired last night on America's Got Talent in a bid to make it through to the Las Vegas round Piers Morgan reduced a teenage girl to tears on America's Got Talent last night.The former Fleet Street newspaper editor told the lead singer of Poplyfe that he was impressed with her vocal.But he gave her a cruel