British model Twiggy is set to be replaced as a judge on AMERICA'S NEXT TOP MODEL by fellow beauty Paulina Porizkova. The 58-year-old, who has appeared on the series for five seasons since 2003, has been forced to pull out of the show due to 'scheduling conflicts'. Czech-born supermodel Porizkova will take over Twiggy's role on the Tyra Banks-fronted show for the programme's 10th season. TV network CW, which airs the show, issued a statement which reads, "We would like to thank Twiggy for her great contributions to the show. Having an icon like Twiggy lend us her considerable expertise has elevated our show to a whole new level. We wish her well in her endeavours and hope to collaborate with her in future cycles of ANTM as well as other projects." Porizkova began modelling aged 15, and was last seen on U.S. celebrity reality TV series Dancing With The Stars - where she was voted off in the first round. Season 10 of America's Next Top Model is slated to air in February or March next year (08).