Doctors explain Michael Jackson's impossible dance move

Neurosurgeons have described in detail how Michael Jackson achieved biomechanically impossible dance moves in his music video Smooth Criminal. In the 1987 routine, Jackson leans from the ankle at a 45 degree angle, while keeping his body straight as a rod. The illusion, which many have tried to copy, was thanks to specially designed shoes and the artist's core strength.

A v-shaped slit in the bottom of each heel of his spats slotted onto a strong nail or "hitch member" driven into the ground, allowing the dancer to pivot and lean further forward, for the gravity-defying move. CNN