Lifestyle Style Style News Now's Hottest Headlines of the Week By People Staff Published on December 17, 2010 11:00 PM Share Tweet Pin Email 310 Pix Which of Hollywood’s style stars got readers buzzing this week? Check out our top stories! — Rihanna takes her hair from red to brown—and back again! READ IT — Kate Middleton posed for her engagement photos in chic winter white and now you can buy the same stylish looks! READ IT— Prince William‘s something borrowed? A luxe cashmere sweater. READ IT — Jessica Alba steps out with a sleek new bob. READ IT— Rumer Willis makes a high fashion turn as the new face of Badgley Mischka! READ IT