HALLOWEEN: IT ALL STARTS WITH A LEOTARD

These miniature 80s-inspired aerobics instructors remind us of the not so distant past when head bands, leg warmers, and leotards first soared in mainstream popularity.

Actress and fitness phenom Jane Fonda brought aerobics and home fitness routines to the masses in the '80s with the "Jane Fonda Workout."

The British-born Australian musician Olivia Newton-John's song "Physical" went Platinum and was the number one song on Billboard Hot 100 for 10 weeks.

Ah, yes, the '80s.

Photo and costume credit @kristyn_johns