The Japanese billionaire is also known as a contemporary art collector and curator with a large collection at his Contemporary Art Foundation in Tokyo, which features works of various renowned painters like Pablo Picasso, Andy Warhol, Alexander Calder, and Jean-Michel Basquiat.
Maezawa has chartered a flight aboard the company's Big Falcon Rocket, which is still being developed, for a slingshot trip around the Moon as soon as 2023.
Musk outlined a somewhat different SpaceX lunar mission a year ago.
A former drummer in a punk band, Mr Maezawa is tentatively planning to make his Moon flight in 2023 aboard SpaceX's forthcoming Big Falcon Rocket spaceship, taking the race to commercialise space travel to new heights.
"Lasting about a week, the journey will come as close as 125 miles to the Moon's surface before completing lunar transit and returning back to Earth", SpaceX said.
The latest blueprints mark the final major redesign of the rocket, whose development is expected to cost roughly $5 billion, according to Musk.
SpaceX has launched more than 60 missions to deliver cargo or satellites into orbit over the past eight years - all of them without humans on board. Astronauts last visited the moon during NASA's Apollo program.
Musk has put NASA and the Air Force - which collaborates with the space agency in myriad ways - in the awkward position of having to respond to controversial conduct recently.
"Space and the moon represents something to people all around the world", Markowsky said.
A year later, he paid more than $110 million auction for another piece by the same artist. He hasn't said who they might be or how much he is paying for the trip.
Russian and Chinese companies are also working on space tourism plans. The Falcon Heavy rocket launched four year later than planned, while the crew capsule will have been delayed by five years when it sends the first crew of astronauts to the International Space Station in 2019.
SpaceX already has a long list of firsts, with its sights ultimately set on Mars. (On Monday, the diver sued him for defamation.) Then he vowed to take Tesla private, saying that the "funding was secured", only to reverse himself shortly afterward.
Musk, 47, made it clear before the private passenger event that crewed spaceflight for NASA remains SpaceX's top priority. The device wasn't used and in the interview, Unsworth called it a "PR stunt" and said it wouldn't have worked to free the boys who were trapped in the flooded cave.