Demi Lovato - People's Choice Awards 2012

Demi Lovato wows on the red carpet at the 2012 People’s Choice Awards held at Nokia Theatre L.A. Live on Wednesday (January 11) in Los Angeles.

The 19-year-old musician, wearing Marchesa, will be hitting the stage later tonight, performing her new single, “Give Your Heart A Break.”

PHOTOS: Check out the latest pics of Demi Lovato

Earlier this week, news broke that Demi and rumored beau Wilmer Valderrama have split.

The 2012 People’s Choice airs live TONIGHT at 9 pm/8 pm CT on CBS. Big Bang Theory‘s Kaley Cuoco will host this year’s big event!