Incredible Katherine Heigl Natural Hair Color References. While you might think of katherine heigl as the eternal blond in 27 dresses, knocked up, and grey's anatomy, the actress is switching up her look for a new. So ’80s in fact, that we thought it might be a throwback photo rather than the real deal.

Photos of her new look made headlines over presidents day. Heigl crossed over to the dark side for her role in netflix's upcoming series adaptation of kristin hannah's novel, firefly lane , in which she'll play the character tully hart. “i love changing my hair color.