Just when we thought we couldn't love Jon Hamm, or Jimmy Fallon, more: the pair had quite literally The Best Fun Ever by photobombing unsuspecting tourists at the top of the Rockerfeller Center.
Bravo, fellas. You can now be added to this slideshow:
Jimmy Fallon And Jon Hamm Photobomb Tourists In New York, And It's Brilliant (VIDEO)
WATCH: Jimmy Fallon And Jon Hamm Photobomb Tourists