There’s a little Conan O’Brien in every natural redhead — the notion that growing up pale and freckled with a hair color favored by fast-food mascots ensures “the insecurity and defense mechanisms are downloaded pretty early,” as he puts it. And there's also the Darwin factor: Redheads account for a mere 2 percent of the population. All that said, thanks to hair dye, self-tanners, sunscreen (guaranteeing the survival of the species!), and new hair and makeup products just for reds, there’s a revolution afoot. True red or faux? Same diff, these days. Supermodels, screen queens, and real queens: Why everyone should lust for rust.