Idol Worship

Kelly Clarkson & Carrie Underwood to Perform at 'American Idol' Finale

Kelly Clarkson performs on American Idol XIV airing Wednesday, April 1, 2015.
Michael Becker / FOX

Kelly Clarkson performs on American Idol XIV airing Wednesday, April 1, 2015. 

In two weeks, American Idol will dim the lights forever, but not before going out with a bang. The series' three-night grand finale will include performances by Idol superstars Kelly Clarkson and Carrie Underwood, who will return to the stage on April 7.

The Fox singing competition will kick off the three-night event at 8 p.m. Tuesday (April 5) with the 90-minute retrospective American Idol: American Dream. The show will feature host Ryan Seacrest, current and former judges, former Idol contestants and the behind-the-scenes team sharing personal memories. The original trio of judges, Simon Cowell, Paula Abdul and Randy Jackson, will share stories about how the show came to be on Tuesday's special.

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The next night, (April 6), the Idol finalists will battle it out live from the Dolby Theatre competing for America's last-ever votes.

In addition to Underwood and Clarkson, Thursday's show will feature live performances by: Ruben Studdard, Fantasia, Taylor Hicks, Jordin Sparks, David Cook, Kris Allen, Lee DeWyze, Scotty McCreery, Candice Glover, Caleb Johnson, Nick Fradiani, Ace Young, Allison Iraheta, Amber Holcomb, Blake Lewis, Bo Bice, Brandon Rogers, Bucky Covington, Carly Smithson, Casey James, Chris Daughtry, Clark Beckham, Clay Aiken, Colton Dixon, Constantine Maroulis, Danny Gokey, Diana DeGarmo, Elliott Yamin, George Huff, James Durbin, Jessica Sanchez,  Josh Gracin, Joshua Ledet, Justin Guarini, Katharine McPhee, Kellie Pickler, Kimberley Locke, Kree Harrison, LaToya London, Lauren Alaina, Melinda Doolittle, Pia Toscano, Sanjaya, Skylar Laine, Tamyra Gray and more.

The only Idol champ not included in that list is Phillip Phillips, who is currently in a legal battle with 19 Entertainment to escape the "oppressive" contracts that came along with his season 11 win.