You were standing back stage watching over as you wait for the concert to start. You see him give you a wink and thumbs up as the lights suddenly turned to purple.

"Good evening everyone!"

Everyone cheered, he stood on stage, mic on his hand. You watched him from behind the stage as he talks with everyone, you can't help but smile as you see him perform. Suddenly you hear one of your team say that there's a threat near by, see someone climb up the stage with.. a knife?! what do you do?