With Daniel Powter's 'American Idol' farewell song 'Bad Day,' earning the dubious distinction of Billboard's top one-hit wonder of the decade, we got to thinking of the other blink-and-you-missed-it stars of the aughts-from actors and musicians to authors and reality-show hosts. Their popularity may have fizzled as quickly as William Hung's, but here at PopEater, we'll always remember them for their contribution to the crazy first decade of the 2000s.