Alicia Keys performed her new single "Girl on Fire" on the Top 8 results show stage. Subscribe now for more THE X FACTOR USA clips: bit.ly Tune in to THE X FACTOR USA Wednesday & Thursday 8/7c on Fox! Like THE X FACTOR on Facebook: bit.ly Follow THE X FACTOR on Twitter: bit.ly Add THE X FACTOR on Pinterest: bitly.com Add THE X FACTOR on Google+: bit.ly See more of THE X FACTOR on our official site: bit.ly Like FOX on Facebook: fox.tv Follow FOX on Twitter: fox.tv Add FOX on Google+: fox.tv Expect the unexpected when the world's only $5 million audition returns with two new superstar judges and more surprises and twists. Season 2 of THE X FACTOR features global pop icon Britney Spears and multi-talented artist Demi Lovato on the judging panel, alongside returning judges Simon Cowell and LA Reid. Alicia Keys Performs "Girl on Fire" - THE X FACTOR USA 2012 www.youtube.com