Which celebrities should go gray?

Remember Kristen McMenamy, the 90's supermodel? She's 45 now and has the hair to prove it. Unlike most women of a certain age, she embraced her roots six years ago and never looked back. Now that she's gracing the cover of UK Vogue in all her gray glory, she may just kick off a trend.

So what if other celebrities followed suit and let their hair go gray? That's what we asked the patron saint of doctored images, St. Photoshop. Here are his predictions...
[Nick Harvey/Wire Image]