Justin Bieber's Hat Stolen At Airport

It's more Bieber mania!

One thousand screaming fans swarmed Justin Bieber as he arrived in New Zealand on Wednesday. The 16-year-old pop star had to be escorted through the airport. He was wearing a purple baseball cap.  
 
Bieber's hat was stolen right off his head and his mom was knocked down.  

Justin tweeted:

"The airport was crazy. Not happy that someone stole my hat and knocked down my mama. Come on people."