Underwood, who's now serving as a judge on the show, won the show in 2005 Carrie Underwood is throwing it back to 2005. On Sunday, April 6, the "Before He Cheats" singer shared a carousel of never-before-seen pictures from her run on American Idol in 2005.

American Idol has the power of their season 4 winner at the judge's table, and I think that should be pushing them to lean into the nostalgia-factor.

American Idol doesn't feel the same since Carrie Underwood took Katy Perry's seat at the judging table. Has the singing competition show lost its way?