We're going to go out on a limb and predict that former cocktail waitress Kelly Clarkson is going to win this American Idol thing. Last night, the anticipated elimination of Nikki McKibbin narrowed the field of finalists to two: mop-topped crooner Justin Guarini and odds-on favorite Clarkson. "I'm not worried about being the most famous person in America," Clarkson told USA Today after Wednesday's show. "I want longevity." The winner will be revealed Sept. 4 during a special two-hour finale. Meanwhile, look for Guarini and Clarkson to present new artist kudos at tonight's MTV Video Music Awards (live at 8 pm/ET).