Last year it was all about Twilight and True Blood but this year the Gleeks sung their way to the top of this category. Don't tell me you haven't noticed it? Ponytails are everywhere, side braids and rope braids have become common styles . . . even cool girls liked Alexa are following in Quinn Fabray's footsteps and accessorising with cute hair accessories. And not since the Constance steps have we seen so many headbands. From Natalie Portman to Kim Kardashian, Lauren Conrad to Ashley Greene, it's influencing EVERYBODY's style.