WATCH: Jimmy Fallon Sings as Neil Young With Neil Young

Rock legend Neil Young has a fantastic sense of humor. The musician joined Jimmy Fallon on The Tonight Show to perform with the host in his now-classic impression of Young.

Young and Fallon (as Young) sat on a tree stump, singing “Two Neil Youngs on a Tree Stump.” It’s a new song, but had the classic Young sound.

Fallon’s Young impression is a long-running gag, with him performing surprising songs as the “Old Man” singer. Here’s Fallon as Young performing “Whip My Hair” with Bruce Springsteen:

“I thought I was really good in that,” Young told Fallon in May 2014.

Fallon was joined by David Crosby, Stephen Stills and Graham Nashfor “Fancy.”

Last year, Fallon performed “Old Man” as Young with Young beside him.

Tuesday night’s Tonight Show also featured a new “Pros & Cons” segment, focusing on Microsoft getting into the marijuana business.

Lastly, there were science experiments with Kevin Delaney.