Dressed in a seasonally appropriate orange and black outfit, the "Baby" singer was in high spirits as he posed for pictures at the Paramount Studios venue.
Tweeting about the day's outing, Bieber wrote, "getting ready to attend Power of Youth with @PencilsOfPromis here in LA. We can all make a difference"
A short while later, the 16-year-old pop sensation added, "heard there are a lot of kids at this event who havent had it easy. I know what that is like so i got some surprises"
As for the annual event, Variety's Power of Youth is "an initiative that celebrates top young talent and their involvement with philanthropic and humanitarian causes, and encourages their fans around the world to get involved and give back too."