Page through People, Us Weekly and other celeb mags and chances are you'll see a photo of a celebrity holding a Starbucks cup (or two) -- usually a star who'd never be selected by the coffee giant to endorse their products. (Paris Hilton? The Olson twins? -- no thanks!) If you were in Starbucks marketing and assigned to come up with a celebrity endorser who shares the company's values, who would you pick?