While you might think Katherine Heigl [1] as the eternal blonde [2] in 27 Dresses, Knocked Up, and Grey's Anatomy [3], the actress is switching up her look for a new role. The star just revealed her new dark brown hair colour [4] on Instagram, complete with soft layers [5] and sleek styling.

On Twitter, the actress explained that she became a brunette [6] for her role as Tully Hart on the upcoming Netflix series Firefly Lane [7]. While this look is drastically different than the colour we're used to seeing her in, we think dark hair totally suits her.

Ahead, check out Heigl's before and after of her new brown hair.