2012 is set to be a big year for Kate Middleton. Not only is she kick-starting it with an '80s themed birthday bash but she's also set to step up her royal duties, which means more time in the spotlight. And more time for us to envy those beautifully bouncy blow-dries. To chart this milestone birthday, we're taking a look back at Kate's evolving style, from when she was just three, right up until her look for last night's War Horse premiere in London. One thing we did notice is that she can give Robert Pattinson a run for his money in the hair-touching stakes!