What hat do you wear with a kilt?

[David Thorpe]

And don't forget the tried-and-true tartan turban, as demonstrated by this gentleman:

I believe this gentleman may be a Sikh, perhaps from a regiment somewhere on the Indian subcontinent? I fail to see why his headwear is the least bit relevant to the discussion of what any of us wear. My apologies if the photo was posted as an attempt at a humorous sidebar.