I’ve always loved the girl in the long red dress and the guy with the pony tail. It is a fun way to sing, I went to one sing a few years ago. You really can get the roof shaking after awhile. I thought of it after one particular hymn today, similar feel to it.
Acair Fearann 
There is magic in a happy smile that comes from the depths of one’s genuine feeling. Too few of us allow our emotions to rule our voice and face perhaps because we are not happy and instinctively know we must not share our sadness. I wish more people could be happy.
aitd