Exclusive: Justin Beiber on Today Show

Here's an exclusive behind-the-scenes look at Justin Beiber on the Today Show. This kid, an amazing YouTube Sensation had 4,000 screaming fans at his 'sound check.'

When Beiber performed Live, there were a total of 6,000 screaming fans, surpassing Mylie Cyrus and breaking a Today Show record!

Wow... this kid is great!