Demi Lovato looked stunning last night at the People's Choice Awards, and not in just one dress -- but the former Disney darling sported two amazing looks! We first noticed Demi on the red carpet, where she looked sophisticated and chic in a beyond gorgeous Marchesa gown — and the next time we saw her was on stage for her performance, where she swapped her look for a sexy plunging red halter dress!

Both amazing, don't you think? But which one did you like the most? Vote below!

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I was instantly obsessed with the Marchessa gown once I laid eyes on Lovato last night, but we gotta admit that the red performance dress looked amazing with her skin tone and of course redish locks.

Personally I think she nailed both looks! What do you think!?