The Osbournes, X Factor, America's Got Talent: for two decades Sharon Osbourne has been a force to be reckoned with on our screens. Both on and off camera she's had to battle the scrutiny that comes with life in the limelight - and has never been a stranger to controversy. In this, the fourth installment of her autobiography, Sharon details some of the most hardest years she's experienced: the anguish of a broken marriage...