Mischa Barton has revealed she loves Duchess Catherine's style.

The 'OC' actress admitted she's a big fan of the royal - who was named the best dressed woman by Vanity Fair magazine for the third year in a row - and she is in admiration of the clothes the brunette beauty wears.

She said: "I think she's perfect. I like her style. She always looks put together, cute and pretty. I definitely wouldn't change her."

The star also thinks that the duchess is the perfect role model because she is so "positive" and "cool".

She told OK! magazine: "I think she's a much more positive role model than most we see in ads and magazines. During the Olympics it's given people so many more positive role models and she's been one of the existing ones we look up to who's positive and healthy and cool."

The royal - who was formerly known as Kate Middleton before her marriage to Prince William - has been praised for her style after attending several high profile events including Queen Elizabeth's Diamond Jubilee celebrations and the London 2012 Olympic Games.