What the What? These Underpants Claim to Help You Burn Calories

There are shoes that purport to burn extra calories. There are pieces of clothing that do the same. But--ladies!--underpants?...

These are not the actual calorie-burning underpants in question.

Calorie Shaper is an undergarment offered in Japan. It has a built-in resin-coated honeycomb spring that is supposed to help you burn extra calories doing normal day-to-day activities when you wear it.

Fascinating, for sure. But the infomercial also boasts a fabulously '80s-ish (?) song, diagrams and equations that I can't fully grasp because I am too hypnotized by the choreography. Seriously, try to watch it just once.