But he's also gone on a TV game show - testament to his bravery, as Japanese TV game shows are well know for being downright bizarre.
That's what makes them so much fun.
Here's what he tweeted from @elonmusk about the experience:
We haven't figured out what happened yet, either. If anyone can find out, please let us know and we'll pass the info on to Musk!
Twitter has been having a lot of fun with Musk's bafflement. Did he sell SpaceX for a few pieces of sushi? Is the laugh on him because Tesla is now owned by Toyota?
It's an evolving story...