Bill Gates went through all his old Halloween costumes to make this super-weird video

Bill Gates: Microsoft cofounder, billionaire philanthropist., and now, a master of disguise. Well, sort of.

Gates hosted his fourth Reddit AMA on Tuesday to promote his and his wife Melinda’s message in their eighth Annual Letter. He answered questions about the ways in which he’s a frugal spender and his fondest memory at Harvard. He even recreated his high-school yearbook picture for his verification photo.

But the best part came after the Q&A ended. To thank all the redditors who asked him questions, Gates posted a video in which he shows that he can be a total goof. 

Gates just wants to say “thank you” from Cabana Bill, Alien Bill, Rastaman Bill, Captain Hook Bill, Artist Bill, and Uncle Sam Bill. 

Screengrab via thegatesnotes