Hayden Panettiere just dyed her famously blond hair auburn. From Scarlett Johansson to Jessica Alba to Lucille Ball, VIEW OUR GALLERY of stars who headed red.
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Shea Walsh / AP Photo; INFphoto.com Bryan Bedder / Getty Images; Pascal Le Segretain / Getty Images Matt Sayles / AP Photo; Frederick M. Brown / Getty Images Dan Steinberg / AP Photo; Fame Pictures AP Photo; Kristian Dowling / Getty Images Frazer Harrison / Getty Images; Getty Images AP Photos Sean Gallup / Getty Images; Stephen Shugerman / Getty Images Sara De Boer / Retna Ltd.(2)