Best Dressed Guests: Elle Style Awards 2015

It seems awfully intimidating to dress for an event aimed entirely at your style, but plenty of fashion's biggest It-girls pulled it off flawlessly. The 2015 Elle Style Awards were held last night in London, where everyone from Taylor Swift to Simon Cowell were honored with big wins. Rosie Huntington-Whiteley was named Model of the Year, while Cara Delevingne took home the Breakthrough Actress award. Click through for the stars who stunned at the fashion-focused celebration!

[Photos courtesy of Getty Images]