30. Carrie Underwood
Profession: Singing
Est. Net Worth: $140 million*
Without a question, Carrie Underwood has evolved greatly since her appearance on American Idol. In 2005, she was a relatively unknown country singer who won the fourth season of the show. Since then, Underwood has become one of the most successful Idol contenders. She has a nine-figure nett worth as a result of her successful singing career. Since the mid-2000s, Underwood has been a radio regular with hit songs such as “Before He Cheats,” “Jesus, Take The Wheel,” and “Somethin’ Bad,” among others.