'American Idol' judges through the years
A look back on the celebrity panel.
Image 1 of 15
Harry Connick Jr.
Years on the show: 1.
Singer Harry Connick Jr., who acted as a mentor for the top 5 finalists in 2010, will appear on the upcoming season of "American Idol" as a judge. Connick, along with Jennifer Lopez and Keith Urban, will make up the panel on Season 13 of "American Idol."