Impromptu....just...

pick up the phone and snap....We were mucking around with lights and shadows/silhouettes for our film.  I happened to be sitting in one of the chairs to see if the chair was in the right place and I turned and said the the student..."Don't move".  He sat still and I snapped and this is what I got.  All the students were looking at it and broke into an impromptu song  that I didn't recognise.  (age difference I think)