Justin Bieber plays before KC crowd of thousands excited at a fever pitch

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KANSAS CITY, Mo. -- Justin Bieber drew thousands of die-hard fans into Sprint Center for a stop on his ‘Purpose Tour’ Wednesday night.

Toting homemade signs and guitars, there was no doubt the KC crowd had Bieber Fever. Most of the fans were young girls who couldn’t contain their excitement.

“I think he`s amazing! And really attractive, and he has such a good voice,” said 9-year-old Penelope Tatum.

Their love for the pop sensation, and the chance to see him perform live, was overwhelming.

“So excited, I`m going to cry when he sings ‘Purpose.’ I`m so excited, I`m freaking out,” said Julia Wilburn.

Of course, there were a few dads, and some un-enthusiastic big brothers.

“He`s a good singer, I can say that, but not my kind of music to listen to though,” said Jayden McConnell, who brought his sisters to the concert.

Not to be forgotten, there were those lucky few who had meet-and-greets with the star, but were left asking 'what do you mean?’ when Bieber decided to cancel them because meeting so many crazed fans each night of his tour was just too much to handle.

“It was really depressing because you had a once-in-a-lifetime opportunity, but now it`s taken away,” said Sophia Cherafat, who had meet-and-greet tickets.

But not even that would the concert for the die-hard “Belibers,” who despite a long list of the singer’s mishaps, were more dedicated than ever.

“I`m still going to try to have the best time,” Sophia continued.

Before the concert began, FOX 4’s Katie Banks tweeted a video of a few fans holding a street performance outside of the Sprint Center:

Then Bieber retweeted it!

The fans were shocked they had gone viral.

“I was in disbelief. Honestly, I could not believe it. We all just looked, like are you kidding me? We came down here to just have some fun and did not expect this to happen at all,” said Brad Ellis.

Love him or hate him, Bieber is a force on social media.