Norwegians and Muslim med students

I really like these two clips from youtube.
This first one seems to have been made by a few Norwegian girls who produced a reinactment of "Say a little prayer for".
The second clip stars Muslim med students in the United States. The action follows the lyrics and music of an Ellis Paul song called "The world ain´t slowing down".

These clips are made by amateurs yet their spontaneity perhaps would be lost in the hands of professionals since they project a youthfulness that is so hard to capture.