We've Got A Big Big Mess On Our Hands Tonight

Emily just moved to Minnesota from Australia, she met 3 friends who became her besties. They go to a concert and wait by a door that the bands usually come out of. But they don't expect more than them talking to them maybe a picture and a few autographs. But after doing all that, they got more than what they bargained for. Now what will the consequences be for meeting them and adding a few mixed feelings about characters can't hurt...