Some of music's biggest stars got dressed up to hit the red carpet for the Brit Awards at London's O2 Arena today. Taylor Swift arrived in a sexy, sheer Elie Saab gown ahead of her performance at tonight's awards. Justin Timberlake looked dapper in a suit, while Rita Ora went with a silk peach gown. One Direction also popped up on the red carpet for tonight's big show. Click through to see who else stepped out for the star-studded show in the UK tonight!