Ashlee Simpson-Wentz fades back to black and Robin Wright says goodbye to blonde. Penn X17online | Jemal Countess, Getty Images

Black (hair, that is) is definitely having its moment.

From rich espresso to jet black, Hollywood stars, pop singers, and models are dying their locks dark this fall.

Ashlee Simpson-Wentz recently toned down her fiery red strands reportedly in preparation for her new role as Roxie Hart in the Broadway musical production of Chicago. While the rocker mommy is no stranger to the dark hue, we are a bit torn on Ashlee's hair transformation.

Actress Robin Wright nearly sent us into a beauty spiral when she debuted this deep shade at the New York City screening of The Private Lives of Pippa. But Wright's drastic shift from blonde to black brings out her cool, blue eyes and adds warmth to her pale skin.

Kristen Stewart and Agyness Deyn prove that young stars can pull off the look, too. Taylor Hill, Getty Images for Allied Advertising | Andrew H. Walker, Getty Images

Twilight starlet Kristen Stewart and model Agyness Deyn are also rocking black hairdos - whether sleek or blunt, the styles play up the versatility of the color.

Which celeb do you think should join the dark side? Would you dye your locks black?

Click here to see brunette stars who went blonde.