Viral Video Chevy Chase Jimmy's Piano Duet: ‘Tonight Show’ Host Joins ‘Vacations’ Actor For EPIC ‘Heart And Soul’ Rendition! [WATCH]

Although Jimmy Fallon's clips from "The Tonight Show" have seen him turned into something of a viral video divinity of the small screen, it seems like some of his funniest bits come when another former member of "Saturday Night Live" goes to visit, like Chevy Chase and Jimmy's piano duet!

This week, the "Vacations" star came by the show, and as should always happen when two comedy greats, the two joined forces for a hilarious song rendition on Chevy Chase and Jimmy's piano duet.

For Chevy Chase and Jimmy's piano duet, the two "SNL" alums sang "Heart and Soul" in what may or may not have been improve - in any case, watch the awesome clip below!