Excitement was definitely in the air as fans came out in force to see their boy Bieber in concert.

They warmed up their singing voices and screaming voices.

"We love Justin Bieber!"

All in preparation to see Pop/R&B teen sensation Justin Bieber perform at the Great Allentown Fair.

"Love him. Love him. Love him," said one fan.

"I like Never Say Never," said one fan. What about you? "I like "That Should Be Me."

Fans made shirts, decorated sunglasses, and their own faces all to be Bieber-ific.

"We made these. It took like 4 hours last night," they said.

Fans said there are many reasons why thye've got the Bieber fever.

"His looks. Not only his looks, his personality," one fan said.

"I like his voice. I like his voice, everything," said another.

And another added "his looks and his hair."

Yes, you heard right. His hair.

"Like when he go like that play with like that in his video, he's so cute," one fan said.

This is Bieber's first headlining national tour and these fans were beyond thrilled to have the hottest ticket in town.