Carly Rose Sonenclar, 13, Stuns Simon Cowell On 'X Factor' (VIDEO)

We live-tweet "X Factor" every week on @HuffPostTeen -- follow along with us Wednesday and Thursday at 8pm EST!

Carly Rose Sonenclar, the 13-year-old vocal powerhouse competing on "X Factor USA," took on an epic, blockbuster hit for the show's "Diva Week" theme: Celine Dion's "My Heart Will Go On." While, admittedly, we may be a tad biased towards the teen contestants on the show, we think Carly's rendition of the sweeping love song was the biggest stunner of the night. See for yourself in the video above -- and we dare you not to get a little bit weepy.

And we weren't the only ones impressed with her performance: Carly was voted in second place overall by viewers, behind the 37-year-old country singer, Tate Stevens. Perhaps even more shockingly, Simon Cowell offered Carly (arguably) the best feedback he has given to any contestant on the USA show so far.

"I don't believe you are a human being," he said. "I actually don't. Because you can't do that at 13 -- your control on that song. I thought I was going to hate it, and that note in the end was absolutely incredible. "

Fellow judge Demi Lovato agreed. "I don't believe that's your voice. I feel like Celine Dion is here and she's hiding."

The song, selected by Carly's mentor Britney Spears, was not only a good fit for her range, but the teen also admitted she had felt a special attachment to it.

"Titanic is like my favorite movie," Carly said.

The three other teens -- Beatrice Miller, Diamond White, and Arin Ray -- also made it into the top 12 this week with impressive performances. Check them out in the slideshow below and tell us: Which of the "X Factor USA" teens is your favorite? Do you think Carly Rose Sonenclar can win the show? Sound off in the comments below or tweet @huffpostteen!