HOLLYWOOD actress Kate Bosworth has jetted in to Australia as a fashion ambassador for Victoria's Spring Racing Carnival but whatever you do, don't ask her about her own appearance. Reporters were banned from asking the super-skinny Superman Returns star about her much publicised weight loss at a press conference in Sydney today. But Bosworth did reveal one tip for staying healthy - ignoring tabloid media reports about her private life. "I've stopped reading about myself … it just comes to a certain point where so much of it is bulls**t that it's just not healthy, really," she said. As part of her ambassador role Bosworth will be judging Fashion On The Fields on Derby Day, but she said she was nervous about having to pick a winner in the style stakes. "I find it difficult to judge somebody else's style because it's so personal," she said. The 23-year-old was well briefed on her style duties - unlike Mischa Barton, another Hollywood it-girl to recently hit our shores. Barton was stumped when asked about the Australian designer she was wearing at the time of her visit. Bosworth confirmed she would be wearing Collette Dinnigan on Derby Day.

Kate Bosworth