Carly Rose Sonenclar closed out the performance finale of "The X Factor" with a song that's become a staple on singing competitions. Nevertheless, her mentor Britney Spears felt that Sonenclar's take on "Hallelujah" was enough to earn her the top prize.

"I feel like that song alone is worth five million bucks, so, you should get out your checkbook, Simon," she told Simon Cowell.

But was it enough? Sonenclar faced off against Tate Stevens -- the two have flip-flipped atop the leader board all season long -- and underdogs Fifth Harmony.

To help them make up their mind, viewers were also treated to duets featuring the finalists. Stevens sang with Little Big Town, while LeAnn Rimes joined Sonenclar on stage. The show's own Demi Lovato hit the stage with Fifth Harmony. Cowell compared his all-female group to One Direction, which was formed on the British version of "The X Factor" a few years back, though they did not win.

Who had what it takes to be victorious? Find out during "The X Factor" season finale, Thursday at 8 p.m. EST on Fox.

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