Who says gray is grim? Not CNN anchor Anderson Cooper, who won kudos for not trying to hide his prematurely gray hair. And not President-elect Barack Obama, whose suddenly silver temples -- the most visible scars of his 21-month campaign -- give his youthful face a little heft.

But if you think there's a double standard that relegates gray-haired women to the rocking chair, take a look at these gray- and white-headed celebs and how they're redefining style.