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

While judging on 'American Idol', Carrie Underwood recently took the stage to recreate her iconic performance of "Alone" ...

Days after she shared a 20-year-old clip of her performing Heart’s hit 'Alone,' she opened the show’s Rock and Roll Hall of ...

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

Fans of American Idol are buzzing after brand new judge Carrie Underwood put on an unforgettable performance during the ...

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

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

Carrie Underwood‘s cover of Heart’s “Alone” on American Idol is now one of the most memorable performances from her winning ...

During American Idol's "Rock & Roll Hall of Fame" themed episode, 15-year-old contestant Mattie Pruitt delivered a ...

The 'American Idol' star shared a 20-year-old clip of her performance of the song 'Alone,' originally performed by Heart ...

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