While New York Fashion Week has us fixated on the runways and the city's street-chic style set, across the pond in London, a different crew of fashion insiders and celebs were showing off their red-carpet looks at Elle's Style Awards. It was a chic gathering of attendees in a range of worthy style — we spotted the leggy Poppy Delevigne showing off one of Mary Katrantzou's Topshop designs, Alexa Chung styling up (maybe our favorite — ever) take on the menswear trend, and the gorgeous Rosie Huntington-Whiteley channeling ethereal glamour in Antonio Berardi. Click through to see who else stepped out for the fashionable fête.