Justin Bieber: Exclusive Aussie Acoustic Concert Fun

And apparently there were far more teen girls that wanted to go than there were tickets for them to be able to attend.

An insider told press, "We had 30,000 people apply for tickets and we could only have max 350 so it was a fierce competition.”

But for those 350 lucky winners, Justin and his guitarist Dan Kanter performed a hit-filled seven-song acoustic set as a harbinger for Bieber’s world tour in the months to come.