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 her famed dressCarrie Underwood had a major throwback moment on the Monday,

Some American Idol fans are expressing discontent with Carrie Underwood on the show's judging panel, the latest blow to the show alum who is also being accused of "ruining" the show. Underwood, who recently surprised with a familiar dress on a recent episode,

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.