Kelly Osbourne has blasted Prince William's new wife Kate Middleton for recycling her fashionable looks, insisting she should wear a new dress every day. 

The new British royal has fast become a fashion icon for her stunning wardrobe choices and has been widely praised for mixing and matching her pieces to wear on more than one occasion.

But rock offspring Osbourne, a regular commentator on U.S. show E!'s Fashion Police, is not a fan of the princess' "thrifty" ways. 

She says, "In England they're like, 'Look how thrifty she's being, showing the British public that the royals are in a recession as well. Only in this country they call it a faux pas. 

"I'm sorry, but if I had that job I would only wear it once. If I am going to be the future bloody Queen of England I'm going to wear that dress once because I'm giving up the rest of my life, all of my privacy. At least I can get a new dress every day!"