Emma Stone so happy in the company of his friend Taylor Swift in the Los Angeles premiere of her latest movie 'Easy A' at the Grauman's Chinese Theatre.Emma sported a long-sleeved multi-colored dress that was also back solve. The story of the film is about a high-schooler Olive Penderghast telling a lie about losing her virginity.The film also stars Penn Badgely, Alyson Michalka and Amanda Bynes. Photos below.