Clarkson won the first season of the FOX singing competition series in 2002, while Underwood won the fourth season.
American Idol‘s three-night series finale begins on April 5th, at 8 p.m.,“with a 90-minute retrospective, American Idol: American Dream, featuring host Ryan Seacrest, current and former judges, former Idols and contestants and the behind-the-scenes team sharing their personal Idol memories.”
Clarkson and Underwood will perform on the final night of the finale, April 7th.
Check out both Clarkson and Underwood’s American Idol auditions below:
What do you think? Do you watch American Idol? Are you sad it’s ending? Who’s been your favorite contestant?