Underwood beat Bo Bice to win the show and is now serving as a judge on Season 23 following Katy Perry ‘s departure. She threw it back to her own Idol days on the Sunday, April 27, episode, as well, when she performed “Alone” by Heart. It was one of her own most iconic performances from the show.

Fans first saw Underwood wear the halter-top dress during the Season 4 finale in May 2005. She rocked the look when Ryan Seacrest called out her name as the winner. Bo Bice was the runner-up. Underwood shared some insight on deciding to slip back into the memorable look for the latest “Idol” episode.

Carrie Underwood, 42, went back to her “American Idol” roots for the season’s “iconic Idol moments” special on Monday night. For the occasion, the singer — who is now a judge for the singing competition show — chose the exact same dress she wore in 2005 when she won Season 4.