Original Song: "Stay" by Rihanna
Cover Artist: Singer Demi Lovato
How It's Different: Staying mostly true to the original, Demi's live version sounds very similar to Rihanna's hit single, minus the duet. Taking the stage solo and singing with only a piano in the background, Demi hits the notes with ease, but then in typical Demi-fashion, she kicks it up a notch at the end showing off her vocal range. (Seriously, is she next Kelly Clarkson?)
Why We Love It: You know Demi best for her bouncy pop anthems with a slight rock 'n' roll edge, so hearing her sing a ballad is always a nice change of pace -- and further proof that her voice is ah-mazing.
Better Than The Original? We love Rihanna... but Demi's version rocked. We call a tie!
What do you think of Demi's cover? Tell us in the comments or tweet at @HuffPostTeen.