I walk on my head all day, but never get tired. I keep something lucky attached to where it should be. What am I?

Question

I always run but never walk,
I sometimes sing but cannot talk,
No head on which a hat to place,
You always look me in the face.

What am I?

Answer 1

The Nail on the horseshoe.

Explanation:

The nail on the horseshoe has it’s head toward the bottom of the horse’s hoof. So when the horse walks the nail walks on it’s head.

It attached horseshoe which is considered to be lucky, to horse’s hoofs.