Pop superstar Prince is facing painful hip surgery to help him cope with discomfort brought on by years of performing in high-heeled boots. The pint-sized singer is thinking twice about a full hip replacement, according to sources close to him, because, as a Jehovah's Witness he's against the blood transfusion part of the operation. The 47-year-old star is on medication as he attempts to battle the pain of his bad joints, according to US tabloid National Enquirer.