Eva Simpson & Caroline HedleyKYLIE Minogue has amazed friends by throwing herself into exhausting rehearsals for her new tour - just months after recovering from cancer.The 38-year-old pop princess wasn't expected to start rehearsals until a month before the Showgirl Homecoming tour kicks off - in November in Australia.But we can reveal she is spending up to six hours every day in a secret central London studio to revamp her stage show.Advertisement