Carrie Underwood gave fans a blast from the past by performing "Alone" on "American Idol," two decades after doing so on the ...

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

Carrie Underwood, 42, went back to her “American Idol” roots for the season’s “iconic Idol moments” special on Monday night.

Carrie Underwood has always been a trailblazer in the music industry, but her journey on American Idol remains one of the most memorable moments in the show's history. As she now serves as a judge on ...

The season 4 winner is now a judge on 'American Idol,' and she joined in the show's "Iconic Idol Moments" night by re-wearing ...

After an incredible compliment (and true prediction!) from 'American Idol' judge Simon Cowell, Underwood says she felt like ...

Carrie Underwood has come full circle since winning "American Idol" two decades ago. The singer has sold over 85 million ...

Carrie Underwood made an unforgettable return to the American Idol stage on Sunday, opening the latest episode with a ...

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

There were enough hints dropped by American Idol regarding this nostalgic performance, but still, it took fans by surprise.

The theme of tonight's episode of American Idol is "Rock and Roll Hall of Fame Night," and judge Carrie Underwood is ready to ...

Carrie Underwood opened the latest episode of American Idol on Sunday, April 27, with a cover of Heart's "Alone," and fans ...