Demi Lovato: 'X Factor' Finale Party

Demi Lovato hits the purple carpet for The X Factor Season Finale Night 1 party held at CBS Televison City on Wednesday night (December 19) in Los Angeles.

The 20-year-old singer shared the stage with finalists Fifth Harmony for a duet singing her own hit, Give Your Heart A Break.

PHOTOS: Check out the latest pics of Demi Lovato

So amazing to see @fifthharmony evolve. I hate to say it but @SimonCowell did a great job! Demi admitted on Twitter.

15+ pics inside of Demi Lovato

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