Justin Bieber keeps a smile on his face as he arrives at Whitney Elementary School in Las Vegas on Friday afternoon (December 16).

The 17-year-old musician delivered on his promise to good friend and talk show host Ellen DeGeneres and performed a special concert to the school kids.

PHOTOS: Check out the latest pics of Justin Bieber

Recently speaking with AOL, Justin opened up about a few holiday traditions his family has.

“We played a game on Christmas Day where everyone brought a girl gift and a boy gift. You roll the dice and if you get doubles, you get to pick a present and if you don’t, it’s the next person’s turn. Then, the next time you roll doubles you get to choose someone else’s present and switch,” he shared. “One time I really wanted a Game Boy but I ended up with pots and pans, which was disappointing. I think I gave them to my mom.”

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