Britain's Got Talent 2011: Mini crooner Robbie Firmin, seven, stuns the judges with his Frank Sinatra cover

By DAILY MAIL REPORTER Mini Blue Eyes: Kent schoolboy Robbie Firmin, seven, sing Frank Sinatra's My Way on tonight's episode of Britain's Got Talent Over the series on Britain's Got Talent, the judges have been entertained by many a Rat Pack-style crooner.But the sounds of Frank Sinatra were the last things Amanda Holden, Michael McIntyre and guest judge Louis Walsh were expecting when little