I don't think that's a wig btw
...he just has terrible taste in age appropriate hair
I don't think so either, he got the 'doo when he was doing a lot of publicity trying to get another Body For Life type thing going, and Bebier was popular.
P.S. for the younger guys, Hester was a Muscle Media 2000/Phillips/EAS guy for about 2 years between 96-98, and the gimmick they were running was that Hester would limit his regular intake, and try to do most of his contests with the help of EAS supplements. Phillips later dropped him around the time they stopped using the 2000 part of the Muscle Media name(the Goldfinger issue). They later went with softer, lighter physiques that were easier to sell as natural.