Supermodel Elle Macpherson fears fans will think she's starting to look old at 46 when she appears on new TV show The Beautiful Life - because she hasn't had any plastic surgery.

The Aussie stunner admits even she's shocked at how she looks compared to her beautiful co-stars, like Mischa Barton and Sara Paxton.Macpherson, who plays a modeling boss, says, Sometimes I really see that I'm the one that hasn't done anything because I think, 'People must think oh my God, she looks old.'