, Kelly Osbourne , Lily Allen , Amy Winehouse , Gwyneth Paltrow , Sienna Miller , Mischa Barton , Chloe Sevigny , Keira Knightley , Foxy Brown , Christina Aguilera , Reese Witherspoon , Cate Blanchett , Kate Bosworth , Alexa Chung , Pixie Geldof , Zooey Deschanel , and HRH Princess