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Posted Sat, December 11, 2010 4:05pm EDT

Justin Bieber, Kim Kardashian, Katy Perry & More Party At Jingle Ball In NYC!

It was an A-List affair Dec. 10 as every young star came out for Z100’s annual holiday concert!

It was a tweenage dream Dec. 10 as Z100’s annual Jingle Ball concert brought out celebs including Katy Perry, Willow and Jaden Smith, Kim Kardashian, Hayley Williams and recent breakfast buds Selena Gomez and Justin Bieber. Justin even got to spend the evening surrounded by two of his biggest fans in Kim and Selena, not a bad situation for a 16-year-old!

Take a look at some of the celebs in the gallery above!