The daily Radio 1 fashion parade had a guest star today, as Alexa Chung made an appearance, joining Fearne Cotton in running the paparazzi gauntlet from coffee shop to studio. But which star had the best street style? We're loving Alexa's ability to make multizippered leather shorts look casual with the addition of a pretty blouse and strappy sandals, but Fearne's swing dress and layered pendants are also on the money for London's surprisingly balmy September weather. There's only one thing to do, so we're handing it over to you. Vote now for your best-dressed London lady!