Carrie Underwood and Rod Stewart are just two of the A-List performers set to take the stage for the American Idol finale on May 20, RadarOnline.com has learned exclusively. Another six to eight superstars are set to be announced later today.
Adam Lambert and Kris Allen will be dueling it out for the American Idol crown.
Their final performances will be Tuesday, May 19, with the results announced May 2O after all the pros have performed their sets. Fox is expecting the biggest ratings ever for an AI finale.