First, she posed for a pic on the red carpet with Gigi Hadid.

Then was snapped talking to Frankie Grande and Bailee Madison.

She rocked out in the audience with fellow performer Meghan Trainor.

She talked to New Artist of the Year nominee Tove Lo.

She rocked the stage with Alanis Morissette. 

She was snapped backstage with Ellie Goulding and Julianne Hough.

She chatted it up fellow pop star and AMAs performer Ariana Grande.

And took this pic with Ari’s family and her longtime pal, Nick Jonas.

It’s safe to say Demi had a killer night at the AMAs!

Want more Demi? Check out a full recap of her AMAs performances here.

Thanks for watching the 2015 American Music Awards! Click here for a full list of winners.

Hmm…we’re not sure if Demi Lovato and One Direction member Niall Horan are dating, but we do know that they just Skyped with each other! Here’s what Demi’s backup singer Shari Short revealed on her Twitter account:

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@NiallOfficial it was nice to meet you over Skype with @ddlovato are you going to come to one of our shows in the US this Summer?

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We know that Demi and Niall both have a crush on each other! So, are they dating? Take the poll below to let us know!

We can’t say we’re surprised. Demi has called Niall “adorable” in interviews and they’re both fun-loving and super talented. 

Could you see Nemi being a thing? Sound off in the comments.

Sometimes we see celebs’ clothes and we’re so in love we catch ourselves devising elaborate plans to raid their closets (or at least put together a similar ensemble at the mall). Other times though, we see a famous face where something that would totally make us blush – in a bad way. We want to know your opinion on this outfit! Demi Lovato wore this green print dress to an X Factor event this month. Would you rock it?