Photograph - Luke Hemmings

"You didn't have to do that." My breath still raspy.

"So I should have left you there, to be crushed?"

'''

After stumbling across a cheap single ticket to a 5 Seconds of Summer concert, Catherine Jenkins made her way in to Rod Laver Arena to watch four Australian boys perform.

She had never tested out her camera on concerts before. So she thought that while she could nab a cheap ticket, she could give it a go.

What follows is dramatic, why do teenage girls get so pushy when their idol is performing in front of them?

Pushed by multiple fans in to the barricade in the in front row of the arena, Catherine is desperate to get out, tears stream her face as she hears a rib crack.

Watching the pretty girl with the camera in the front row, Luke Hemmings watched for too long before he ordered a security guard to help the girl who was being crushed. He stopped singing and watched as the security guard helped her over the barricade and took her backstage.

'''
What followed just hours after the incident was life changing for Catherine. And for the four boys who formed the band, 5 Seconds of Summer.