Britain's Catherine, Duchess of Cambridge arrives for a Christmas Day service at St Mary Magdalene Church on the Royal estate at Sandringham, Norfolk in east England, December 25, 2011.[Photo/Agencies]

Britain's Duchess Catherine's fashion sense has been hailed "amazing" by a top Hollywood stylist.

The young royal's dedication to high street brands over high society fashion have won her a number of fans including Nikki Pennie, who has styled stars including Kendra Wilkinson, Shenae Grimes, Cat Deeley and Madonna.

Writing on fashionista.com, Nikki said: "She's amazing; she's wonderful."

She also praised Catherine's sister, Pippa, adding: "Both the Middletons – they're in the same age group as me and it was very much our culture growing up that we shop at the high street stores.

"You can see a dress that Kate Middleton or Pippa wears and you can go the next day to Warehouse or to Topshop and buy that dress and it's probably under $200."

Nikki – who comes from London - also credits the Duchess of Cambridge and Pippa with helping to change the attitude of many stars in Hollywood.

She added: "It used to not be cool for a celebrity to wear Topshop on the red carpet and now it's the thing to do.'

'It's all about accessible clothing and things that people can actually go and buy and it doesn't matter how much a dress costs as long as you look good and you feel great."