London, Sep 6 - Australian supermodel Elle Macpherson has revealed she fears to look old at 46 because she hasn't had any plastic surgery unlike her contemporaries.

Macpherson appears on new US TV show 'The Beautiful Life' and despite admitting she's shocked at how she should be compared to her young co-stars like Mischa Barton and Sara Paxton, she fears her fans might take her to be looking old, reports imdb.com.

'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',' she said.