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.

Carrie Underwood experienced a full-circle moment last month when she returned to "American Idol" as a judge 20 years after she was crowned the winner of the hit singing competition show.

Carrie Underwood ... commented on Underwood's Instagram page. "It made me love that song so much, hearing your repeat of it was even more amazing." Underwood memorably sang "Alone" on "American ...

Carrie Underwood is giving "American Idol ... Play the USA TODAY Daily Crossword Puzzle. Underwood memorably sang "Alone" on "American Idol" in 2005, delivering what fans consider to be one ...

Carrie Underwood's cover of Heart's "Alone" on American Idol is now one of the most memorable performances from her winning run on the show back in 2005. But at the time she sang it, Underwood ...