People Involved In Music Video

We have decided that Olivia and Romy who are both in the group that I am working with will take the main role of Jessie J within our music video. In the video we see a mini Jessie J and Jessie J herself. We are going to film all of the performance shots with Olivia as Jessie J singing in the classroom location and Romy will play the younger Jessie in the narrative shots and few performance shots where we see her singing.
We have asked people within our media class to sit in the narrative shot in the classroom where we see mini Jessie surrounded by other pupils within the classroom. The other shots where we see other people apart from Jessie J appearing in it for example, the three girls in the corridor, we have also asked people already in our class to be in these shots.