The boy's head is held still by the person behind him. Image Credit: YouTube / Sergio Tapia
Footage of a young boy with a remarkable contortionist act has already proven a hit on social media.
Some people are double-jointed and can move their arms, legs and feet in ways that would make most of us wince, but in this new video, which was uploaded on to YouTube last week, a youngster with incredible flexibility demonstrates his ability to turn his head to face the total opposite direction.
Nicknamed 'The Exorcist' after a scene in the famous horror movie of the same name, the freaky stunt has racked up over 100,000 views and has left many Internet users speechless.
Suffice to say this is definitely not a trick you want to be trying at home.