In my
video I went with Ushers latest hit, More.
For me, the second I heard that song it hit me as the perfect music for the video. It seemed to fit what I wanted the video to say.
I would just encourage your students to think about what they want their video to do. Do they want it to inspire, pump up, or promote, etc...?
Then have them use whatever they think fits what they want the video to.
Encourage them to be creative, videography is an art form.