X Factor standouts Melanie Amaro, Josh Krajcik and Chris Rene have something special planned before Thursday's finale.

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The three finalists will be performing duets on Wednesday's show with some of music's biggest names, Us Weekly can exclusively report. Columbus, Ohio native Krajcik, 30, will share the stage with Grammy Award winner Alanis Morissette, 37. His competitor Amaro, 19, will sing with R. Kelly, 44, while Rene, 28, will perform with "Smile" singer Avril Lavigne, 27.

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In addition to Morissette, Kelly and Lavigne, Justin Bieber, Ne-Yo and Pitbull are each confirmed to perform during Thursday's finale.

"There are a couple more that will be a surprise," judge Simon Cowell, 52, teased during a recent press conference. "There will be collaborations with some of the previous finalists as well."

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The winner of FOX's X Factor will be revealed during a live broadcast on Thursday. The prize: a $5 million recording contract with Syco/Sony Music.

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