Let's not lie: There are a million reasons why we envy Blake Lively (Serena). Unfortunately, however, we can't all date Hollywood royalty or tote a different Chanel handbag every day of the week. On the bright side, we can score a strikingly similar hairstyle to the one the blonde beauty rocked at the premiere of her film, Green Lantern. Thanks to the help of our resident beauty guru, Dawn Del Russo, we can score unbelievably sexy, flawlessly tousled hair in no time flat.