Sometimes even heroes need saving

"ZAYN LOOK OUT!!!!!"
Oh hi there I should probably explain. Lets go back to About an hour ago.
*One Hour Ago
I tightened my scarf while thanking the weather for remaining cold to have the excuse to be able to help hide our faces. My friends and I are in line for the One Direction concert right now. We get to the front and they ask for our tickets. I take out a slip of paper and Opal does her little trick and they let us in. We keep our heads down and we all move into position. I take my spot on the inside end of the aisle near the front. I take in my surroundings and spot the girls. Everyone is in position. Wonderful. After a few minutes the boys come out on stage and the show starts.
* Time Skip
We are about one hour into the show and nothing has happened yet other than the constant screaming of the girls. I am still just sitting here hoping that the annoying screams don't kill my ears. Suddenly I get a small shot of pain in the corner of my temple. I look up and heading straight toward Zayn who is standing right in the middle of the stage is a knife.
I get up and scream at the top of my lungs so that even the boys, all the way on the stage, can hear me, "ZAYN LOOK OUT!!!!"
I raise my hands and send ball of ice directly at the knife knocking it off course and Cat flys down and grabs it before it can hit anyone else. Then all hell breaks loose.

Still confused? Allow me to explain. You see my friends and I... We are superheroes.