For Jonas Brothers concerts why did people have bar codes on their phone sent thru message and it got scaned?

For Jonas Brothers concerts why did people have bar codes on their phone sent thru message and it got scaned?
For the Jonas Brothers concerts some people had a bar code of some sort sent to their phone thought message and through verizon and when they got to the concert the people working there scanned it and something happened. What was that for??

Best answer:

maybe for security concern or they suspecting that guy will record or relay live the show with their cell phone,,

Tags: Brothers, Codes, concerts, Jonas, message, people, phone, scaned, sent, their, thru

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