The X Factor USA aired its finale performance show of the second season tonight December 19, 2012. Each of the top 3 finalists performed three songs. Who do you think will win X Factor USA? If you like to see any of tonight’s other performances, click here!

For their second song, Fifth Harmony sang a duet of “Give Your Heart a Break” with Demi Lovato Only mentor Simon Cowell got to comment and he called Demi “sensational” and said their performance was “pop perfection.”

TO VOTE FOR FIFTH HARMONY: 1-855-THE-XF-03

Watch Fifth Harmony and Demi Lovato’s performance in the video clip below:
http://youtu.be/3mmJEhiLiFI