This man knew that he wasn't particularly overweight to begin with - he had a little 'puppy fat,' but nothing that small changes in his diet and lifestyle wouldn't take care of. His real issue was that he couldn't find a hairstyle that suited him. He felt that no matter what he did with his hair, it always made him look heavier than he really was. Then it dawned on him that the one thing he hadn't tried was not having it cut at all.
As you can see from the up to date picture on the right, it worked with him. When someone has a round face, long hair can help to provide framing and complement your natural shape. Not all men can pull off the long hair look, but he's mastered it! He's lost a little weight through exercise at the same time, but it's the hair that's doing most of the work in this transformation.