“American Idol” judge Carrie Underwood has surprised viewers with a callback to her time on the show in 2005.

American Idol' judge Carrie Underwood had fans in shock when she performed Heart's "Alone" on the show for the first time ...

Carrie Underwood stunned fans at the start of Monday's new episode of American Idol by donning a familiar dress from two ...

If 'American Idol' finalist Mattie Pruitt wants to stick around she may want to consider Carrie Underwood's advice.

Just one day after American Idol viewers made the worst decision of the season by eliminating Amanda Barise (bitter, party of ...

Tonight on American Idol, the Top 12 recreate iconic moments from the singing competition's past as Season 3 winner Fantasia ...