Carrie Underwood gave fans a blast from the past by performing "Alone" on "American Idol," two decades after doing so on the show in 2005.

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

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.

Singer Carrie Underwood might be one of American Idol's judges now, but there was a time when she had to suffer hearing harsh ...

In a recent video, Carrie Underwood reacts to an old clip from American Idol that shows Simon Cowell critiquing her Top Five ...

Carrie Underwood is giving "American Idol" fans a ... Idol" by delivering a show-stopping performance of the song "Alone," made famous by Heart, just as she did on the show 20 years earlier.