It's true that Carrie Underwood sprang to fame as an American Idol winner, but her career needs to be defined in the context of country superstars instead of reality show contestants. Her millions of records sold, her dozens of awards from the Academy of Country Music as well as the Grammys, her many record-breaking feats on the charts, and her status as one of the most powerful people in the music business all testify to her staying power beyond American Idol. Underwood's debut single, "Inside Your Heaven," hit number one on the country charts in 2005, the first of a dozen country chart-toppers over the next ten years. ~ Steve Leggett