Justin Bieber: Hot 99.5's Jingle Ball in Washington, D.C.

Justin Bieber: Hot 99.5's Jingle Ball in Washington, D.C.

Justin Bieber rocks out at Hot 99.5′s Jingle Ball 2012 held at The Patriot Center on Tuesday night (December 11) in Washington, D.C.

The 18-year-old musician flashed his abs for the cameras and crowd while performing during the holiday event.

PHOTOS: Check out the latest pics of Justin Bieber

“Always a good day when i find out two 90,000 big stadiums in S Africa got SOLD OUT for the #BELIEVEtour in 1 DAY 5 months b4 the show!” Justin happily tweeted.

In case you missed it, check out all the dates for the Believe tour’s second leg.

25+ pics inside…

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Credit: Theo Wargo, Paul Morigi; Photos: Getty
Posted to: Justin Bieber