What do Bradly Cooper, Ellen DeGeneres, Meryl Streep and Brad Pitt have in common? Besides being part of Hollywood's elite, they also shared a moment in Twitter history. The "selfie" snapped by Cooper, and posted by DeGeneres, became one of the most retweeted posts ever. Well now there's a start-up that is trying to make every selfie look as perfect as possible (minus the celebs).