When your natural state is mega babe, à la Jessica Alba, it would be easy not to bother switching up your beauty look, safe in the knowledge that you'll always look super hot. But luckily for us, Jess is no shirker when it comes to refreshing her hair and beauty and has been providing us with some major hairspiration on the promotional tour for Sin City 2: A Dame To Kill For. From tousled waves to a sleek high pony, here are her three best looks.