I was a long-time listener of his show, and wondered that myself. He certainly was a fan of Crystal Gayle's long hair, but to be fair there seems to hardly be an interview with her that doesn't mention her hair.

Art's wife Ramona had long hair: reddit.com/r/ArtBell/comments/sptaeu/the_beautiful_ramona_bell_in_1998/

After Ramona died he remarried another Filapina, Airyn. She had waist length hair.