Joan Rivers and her daughter Melissa are huge fans of the Duchess of Cambridge's fashion sense.

The 'Fashion Police' star and her only daughter - who are known for their scathing comments on celebrity fashion faux pas - are in agreement that Catherine, wife of Prince William, is an impeccable dresser.

Joan said: "She's fabulous, she doesn't put a foot wrong."

Melissa added: "Never mind what the fashionistas say, she's like one of your friends who dresses beautifully."

However, not everyone agrees with them. Nordstrom fashion director Gregg Andrews recently claimed Catherine isn't a trendsetter and said she wouldn't stand out if she were not married to royalty.

He said: "She is stylish, but she's not setting trends, she's following trends.

"If you take Kate out of the royal family, put her on a street in New York, you wouldn't look at her twice. She's a beautiful woman, but she blends into a crowd."

Gregg's views were echoed by Elle fashion news director Anne Slowey, who claimed Catherine's look was only admired because of who she's married to.

She said: "Is she a style icon of the likes of a Kate Moss? Absolutely not. Is she in the public eye? Are people going to become obsessed with everything she wears regardless of what it is? Yes."

Ken Downing, fashion director of high-end department store Neiman Marcus, also doubts whether Catherine, 29, will ever be a leading style icon.

He said: "Is she iconic at the moment? Time will tell. She's certainly influential. In the position that she's in you can't be simply stunning as she is and not have influence."