As a fan you should know it's classic Piggy, not grotesque.
I considered changing her, but I thought that image was just perfect as it was. Now, if there is ever a MTM pic with her, you can bet her hair will be swapped! LOL! Bad perm Piggy. My least favorite.
The image came from a newspaper press photo around the John Denver special. I didn't want to change it too much. Great pic. Wish I had it as a poster, but it is page sized.