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,

Carrie Underwood is back at "American Idol," but this time as a judge. The last time she hit the show's stage was when she won back in 2005. As an homage to her win, she sported the dress she wore during the finale.

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,