It’s been almost two decades since the world saw Jordin Sparks audition for American Idol. Now, the award-winning singer is keen to return to the show in a totally different capacity. She auditioned for the show as soon as she was old enough and opted for a Celine Dion song as a way to impress the judges at just 16 years old. In the same week current American Idol judge Katy Perry waves goodbye to $25 million, another pop star is ready to “put her name in the hat” to replace her. Katy has been one of the show’s three judges for the past six years. She and her fellow judges, Luke Bryan and Lion…