Demi Lovato did a great job as the host of the 2012 Teen Choice awards! It was awesome seeing her do her thing through a ton of makeup and wardrobe changes. As her co-host Kevin McHale said: "I just want to point out how hot Demi looks. Can we give it up for that?"

She DID look great, but I have to say, her megawatt smile was what made her such a great host. Demi miust've been having a great time, because she took the big responsibility in stride. I'm sure it didn't hurt that some of her best friends were around for support, including birthday girl Selena Gomez!

In fact, there was even an adorable and impromptu celebration for the birthday girl she and her band were awarded the Choice Pop Band award. 

Here are a few other highlights from the evening:

All photos from Getty Images

Adam Rodriguez 1

Adam Rodriguez

Adam Rodriguez won the award for Choice TV Actor, Action for his work on CSI: Miami--but he seemed to have a grand ol' time presenting the award for Choice Movie Comedy to 21 Jump Street and Jonah Hill.

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Tyler Posey 2

Tyler Posey

Tyler Posey reminded everyone why we love Teen Wolf so much!

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Victoria Justice 3

Victoria Justice

Puerto Rican Nickelodeon actress Victoria Justice looked fabulous in a high-low hemmed dress by Gomez-Gracia with a Lauren Merkin clutch and Schutz heels.
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Bella Thorne 4

Bella Thorne

Half-Cuban teen starlet Bella Thorne brought a lot of sparkle to the red carpet!

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Rainey & Rico Rodriguez 5

Rainey & Rico Rodriguez

Rainey & Rico Rodriguez were so freggin' cute striking a pose on the red carpet together!