Zach Galifianakis. (Chris Pizzello/AP)

While Galifianakis usually likes to put his guests through the wringer, he and Ferrell got along so well that the two comedians fed each other cherries and strawberries. They even shared a kiss

In a nice pre-Memorial Day holiday bonus, one of “Between Two Fern’s” first guests, the spectacular Jon Hamm, came by to look for his keys.

But, like many great loves, their bromance turned sour.

Watch the interview, which features some NSFW language and some disturbing business between a frog and a monkey, here.

More celebs on “BTFs”:

Zach Galifianakis pits Jennifer Aniston against Tila Tequila

Sean Penn on ‘Between Two Ferns’