Rumor has it Michael Jackson was a strange fella. This photo obtained by Radar shows the King of Pop sleeping in something known as a hyperbaric chamber in 1986 or so.

Says Radar:

Hyperbaric chambers are used for hyperbaric oxygen therapy and treat the body with 100 percent oxygen at greater than normal pressure. The chamber is used in treating carbon monoxide poisoning and a number of other conditions. Saturating the body with oxygen has been found to have a number of possible health benefits and studies are ongoing involving the use of the chamber to treat various conditions.

At the time the photo of Jackson in the chamber was taken he was said to be sleeping in it regularly. He was at the height of his fame and loved the mystery and speculation that followed publication of the photo by the National Enquirer, according to a source close to the situation.

Supposedly, the hyperbaric therapy thing was part of his plan to live to 150. Jackson died at age 50 on June 25th, 2009.