STAGE TUBE: Bieber, Pitbull to Appear on X FACTOR Finale - Details Revealed!

At a press conference held yesterday afternoon, the Top 3 finalists and judges revealed details of this week's finale episodes of THE X FACTOR. At the conference, Simon Cowell announced that in addition to Justin Bieber and Leona Lewis performing on the two-hour finale this Thursday, Dec. 22, Pitbull and Ne-Yo are also slated to perform - and our Top 3 contenders, Chris Rene, Josh Krajcik, and Melanie Amaro - will perform a duet with three surprise mega, grade-A, superstars on Wednesday's show.

In addition, it was announced that some of the former contestants will also make an appearance. Said judge Simon Cowell, "This will be the greatest final we've ever been in. And it's gonna be better next year."

At the conference, the contestants were asked by a fan on Twitter, "Is there a song that one of the other finalists sang that you think you could've sung better?" Chris Rene quickly responded, "Nope", while Josh was a little less modest,  "I love what you did with this Melanie, but I would've loved to have sung 'Man in the Mirror.' That would've been easier for me than 'Dirty Diana,". I am saying I could've probably done it better... I'm kidding!" Shot back Melanie, "I think I could've done 'Young Homie' better. I would've tore it up!" Melanie, Chris, and Josh also talked about how they are handling the pressure and which performances they are most proud of.

THE X FACTOR Finale airs this Wednesday, December 21 with the results show airing Thursday, December 22 on the Fox network.

To view a clip from yesterday's press conference, click below!