Bye-bye, blonde hair! Yesterday in New York City, Kate Bosworth was spotted on the set of Still Alice, rocking new red strands. Bosworth made the dramatic change to get into character for the upcoming film, and the last time we've seen this side of the star was back in 2010, when she donned a bolder shade of red for The Warrior's Way. While she's dabbled in even darker colors before, the actress prefers herself in paler shades of the spectrum. "I felt more solemn as a brunette. It doesn't make sense, but I don't take things as seriously when I'm a blonde," she told InStyle previously. Because her current auburn has more of a strawberry blonde effect, we think it's perfect middle-ground between the two hues, not to mention a gorgeous complement to her skin tone. See more celebrity hair makeovers in our gallery!