'American Idol' has been a fan-favorite TV show since the early 2000s. It has drawn in talented contestants from near and far and changed the lives of everyone involved, including the judges. The judges have changed over the years, and in this gallery, we'll explore the fifteen who kept this show engaging, entertaining, and on our TVs. From the likes of Katy Perry and Lionel Richie to the newest addition, Carrie Underwood, 'American Idol' is always changing and evolving.
Curious about who has been a host on 'American Idol'? Click through to find out.