Elon Musk is on a glittery Tokyo summer vacation with Grimes and his son X. I've been to the same art exhibit he went to, and I've got to say — the man knows what's fun.

• Elon Musk, Grimes, and their son X are in Tokyo.
• Musk posted videos and photos of TeamLab Planets Tokyo's massive light exhibit.
• The sprawling gallery of interactive artwork is beautiful, and it's not hard to see why Musk loves it.

Tokyo is oppressively hot in summer, but that hasn't stopped Elon Musk from visiting the city. 

Musk on Thursday announced on X, the social media platform formerly known as Twitter, that he'd "just arrived in amazing Japan."