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Since its 2002 debut, American Idol has enjoyed unparalleled success in the realm of reality television, easily beating out competitors to become the most watched show in the country. Kelly Clarkson, seen in this episode, won the inaugural season of the singing contest, kicking off a successful career that’s included two Grammy wins and popular hits like “Since U Been Gone.” Clarkson aside, American Idol has had no shortage of accomplished alumni, perhaps more so than any other reality show. Season 4 winner Carrie Underwood has sold more than 12 million albums and won five Grammy awards. Jennifer Hudson, a contestant in the third season, won the Oscar for Best Supporting Actress for her 2006 film debut in Dreamgirls. And for all the careers the singing contest has launched based on talent, the long-running series has also spawned viral stars such as the “Pants on the Ground” guy and a She-Bangin’ William Hung.