For some reason, I find this completely delightful. It's probably the dog...
No, I really like the guy too. By the evidence of his big bag of coins, people do appreciate someone who can REALLY sing. While I understand how the other posted videos can be enjoyed, I love how this guy doesn't need a microphone, because he knows how to produce the sound from the core of the body.
In a way, I appreciate this in the same way I do a great sports performance. You can see he is pretty much on the edge on the high notes - he puts his whole body into them, and the tuning is a little iffy... probably because he can't hear his tape so well when he's really expending energy. I remember an interview on CBC radio where an opera singer refused to demonstrate something because she knew that she was physically too close to the interviewer, and would have damaged his hearing if she really let it go.
If you watch from about 2:40, the melody modulates up, so his high note is even higher. In fact he slides around pretty good trying to get it, just after 3 minutes. Such a beautiful moment though, balance between exertion and expression, just really human. Kinda chokes me up. Notice the discrete wipe of the chin just after - singing can be a messy business. This guy is clearly a well trained pro who stopped for a little sing while walking his dog.
Loved it, thanks for posting.