Demi Lovato pulled double duty for MTV last night.
The artist, who had one of the best years of any celebrity, according to THG readers, hosted that network's New Year's Eve celebration alongside Teen Wolf star Tyler Posey. She also performed her latest single, "Give Your Heart A Break," in front of a raucous crowd. Watch and listen below:
Lovato joined a slew of other singers across the country last night, all of whom helped ring in 2012 on stages situated in Hollywood, Las Vegas and New York City.
Nicki Minaj, for example, danced around to the hit "Turn Me On" as part of Dick Clark's Rockin New Year's Rockin' Eve special.