He's totally hilarious but more importantly, he has a #Trollfoot.
If you're not familiar with Danny's Twitter, he often shares pictures of his one foot in different locations and hashtags it his #Trollfoot.
It's a pretty simple art project for Danny. He just lives his life and sometimes, pulls his bare foot out and takes a photo of it against a nice background.
Well he may have just snapped his best #Trollfoot pic EVER while on The Tonight Show!
Yup, you might've already guessed it… Jimmy Fallon posed with the #Trollfoot!!
Check out the video (above) to see just how close Jimmy Fallon is willing to get to Danny DeVito's bare #Trollfoot!! Also, get a look at the infamous pic (below)!!