On a sunny Saturday morning in May 1956, a fifteen-year-old, then called Harry Webb, was mooching down Waltham Cross High Street. He heard some music blaring out of a parked car. It stopped him in his tracks. The song was 'Heartbreak Hotel' by Elvis Presley. It sounded like nothing he had ever heard before. In that instant, the schoolboy who was destined to take the hit parade by storm as Cliff Richard fell in love with rock and roll. It gave him...