Matthew McConaughey Hair Transplant

[Jkel]

Can somebody PLEASE explain this to me?
The Mug shot of Matthew McConaughey was taken in 1998.It is very apparent that he is balding quite a bit in these pictures. I would say that he was rapidly on his way to a full horseshoe effect.

Now ten years later he has a full lush head of hair. For Pete's sake can somebody find out who did his hair transplant? Is it a hair transplant? What is it? Whatever it is I want it!

What do you guys think?