Confused If To Use This Camera For A Music Video

Hi Guys!
i love photography and i have been doing my thing by myself just for fun and recently it started getting love from everyone on Instagram. This raised the interest of a family friend whose son is a musician and they have asked me to help shoot a music video for their son. They will be in charge of the cast, location and other expenses and i have a lot of awesome ideas in mind.
However, i have a which i use to snap photos and i am not sure this can do the work for the video cos i intend to make it as great as possible.
i intend to get a Sony a7s ii and i wanna know if you guys think this will be great for this project. Thanks