I have seen two pictures of the back/crown of Harpers' head. Both were in the FT., and related to different table shots from a G-7 meeting, where he was opposite Obama - the focus of the pictures.

In both cases, it was clear Harper is balding at the crown. Lots of "pink" was visible

No man I have ever met wears only a frontal toupee - there would be no point. You either go for a complete cover-up or nothing.

I would say what you see is what you get - not a defense of the person, just a presentation of what I have seen in the press...

In other words, as much as you may want to add it to the pile of things you may not like about the man, wearing a rug is not one of them.