This is “Maniac” by John Claus:

http://youtu.be/sV3AJViQWJs

“Maniac” was the first or second song of John Maus’ set at Ateliers Claus yesterday.

If I would run into somebody and would have to explain what a John Maus show looked like, then I would more or less choose for the same approach as the guy in the clip below:

To be clear and not to be misunderstood: I liked the show.