Guy sings alone, dances in a dark place (studio maybe), and does some really flexible moves
So the guy, in suit, about 25-30 years old, old time heircut, maybe had a hat, tall, sings quite a good song, dances alone, very flexible- sometimes even on the ground.
The location is no specified, somewhere in a dark room. Maybe there were some elements, can't remember.
Found it on youtube sometime 2012 I think.