Justin Bieber: Jingle Ball 2012!

Justin Bieber rocks out on stage during night two of KIIS FM’s 2012 Jingle Ball held at Nokia Theatre L.A. Live on Monday night (December 3) in Los Angeles.

The 18-year-old singer performed alongside Psy, The Wanted and Ke$ha at the annual concert.

PHOTOS: Check out the latest pics of Justin Bieber

According to EOnline, Justin arrived holding hands with on-and-off-again girlfriend Selena Gomez before singing “All Around the World” and “Baby” among others at the event.

25+ pics inside of Justin Bieber…