American Idol bids farewell to judge Simon Cowell with a performance of the song "Together As One". Kelly Clarkson leads the performance singing with fellow winners Ruben Studdard, Carrie Underwood, Fantasia, Taylor Hicks, Kris Allen, and Jordan Sparks. Contestants from previous seasons join them in the tribute, and Simon himself comes on stage graciously thanking everyone for the experience while judging on American Idol.
