Britney Spears' final performer of the night on 'X Factor' is Carly Rose Sonenclar, who's coming off an impressive week. She finally knocked fellow competitor Tate Stevens from the top spot, so the girl knew she had to bring it this week to maintain the position.

She received a standing ovation from all four judges after her performance of 'Somewhere Over the Rainbow,' but didn't want to get complacent in the #1 spot. Therefore, her mentor chose Adele's 'Rolling in the Deep' because it'd raise the bar "up to here." And then Spears motioned upward with her hand and then immediately couldn't get over how Sonenclar managed to hit the high notes during rehearsals.

L.A. Reid and Demi Lovato hated hard on the young girl; Lovato said she's grown predictable and Reid saying how he wished she'd choose the wrong song this week. It was hilarious B-roll, but way to be haters, guys!

Sonenclar of course nailed the song. Her range and tone is perfect for a song like this, especially given the whole "old soul" persona that's followed her around since the audition period. Both she and Adele have a similar sounding voice, as both sound more mature than they actually are, so hello, this was a perfect fit!

"You're insanely talented, just insanely talented. And you're also very lovable, so it makes it hard to say this wasn't your best performance," said Reid. "But your second best performance is better than most people's first best performance."

Lovato even admitted she was proud of her, so these two must've stopped drinking the haterade!