Two girls knew 5SOS before they were famous...

Before you get any further, I warn you that this is not your typical spy story. You might think it is... But, it's not. Well, where do I start? I'm a highly trained agent/spy working for a small division controlled by the CIA. You can say I'm an advanced 16-year-old. Yeah, I had a very difficult past, but here I am now, working for one of the biggest agencies in the world. I was so excited of getting my first mission as a full-pledged Agent, so could you please tell me why do I have to guard on a world-famous band?