Ryan Seacrest knows what you think of him. Knows it, because he pretty much thinks the same thing. Lightweight? "Let's face it," he says of his TV-hosting career. "It's not brain surgery." Superficial pretty boy? When The Simple Life co-star Nicole Richie told him, on his new syndicated daytime show On-Air with Ryan Seacrest, that her most important possession was her flatiron, he replied, "Oh, sister, trust me, I know. It's the only thing I have in my bathroom. That and Cosmo."
Seacrest, 29, delivers all this with his signature grin--bright, square-jawed, as wide as the grille on a '65 Cadillac--because...