John Massis (4 June 1940 – 12 July 1988) was a Flemish strongman and teeth-acrobat. His real name was Wilfried Morbée. Massis specialized in bending iron with his teeth. He also performed stunts where he lifted cars, pulled trains and stopped motorbikes and even helicopters and hot air balloons with his teeth. This resulted in several entries in the Guinness World Records book. He even stopped 4 small sport planes of lifting off in 4 different directions. In 1983 he also funded a political party called Positief Radicalen in Dutch or Positive Radicals.