Hands down I think the most popular hairstyle of the year was the top knot! Everyone, and I do mean everyone was wearing it--everywhere! Including the red carpet, television appearances, out shopping, in photoshoots, fashion week...I mean the list goes on! But a close follow up was definitely ombre hair, which carried over from last year's big trend. One person who has somewhat dominated the top knot do was Gwen Stefani, who wore it for her everyday style and also on the covers of multiple magazines. Followed by Kelly Osbourne and Nicole Richie who both sported the hairstyle quite often. And now here is a look back at all of the stars who rocked the top knot in 2012!