The former N-Dubz star needed hospital treatment after he was injured in the grounds of his home in Herefordshire, England in December and he was rumoured to have undergone cosmetic surgery to repair his features.The 26-year-old star has now revealed he feared his pop career would be over if surgeons were not able to repair the damage done to his face.He told Britain's Daily Mirror newspaper: "I had to have a nose job cos (because) it was written off. I tapped a horse on the bum... and the septum of my nose was flapping under my left eye. When I was in the general anaesthetic room I was begging the doctor to sort my face out. I said, 'Please, please make it normal. I'm a pop star'."