Love some of the kids expressions! Ones up the front are having a go... then the "ones wot were forced to march" Plod! Plod! or Walk-Slowly! Walk-Slowly! in some cases. That lad in the middle of the group though.... head down! Full on concentration! Looks up... sees the camera... "Oh crap! 
Some of my mates might see me dancing... better Plod!" Music is lovely.
