Justin Bieber keeps busy on his cell phone as he leaves the Z100 Morning Show studio from an interview with Elvin Duran on Thursday (November 17) in NYC.

The 17-year-old singer kept warm in a yellow and blue beanie and a denim vest as he walked around the city.

Justin will appear as a special guest for A Michael Buble Christmas television special along with Michael, Kellie Pickler, Talia, and more!

10+ pics plus the audio inside…