Stephen Colbert and Steve Martin are two peas in a fake forest on 'The Late Show'

Steve Martin is back, bringing back tons of Kumbaya attitude and lots of good friendly vibes for his best friend Stephen, perched on a log.

The motley pair dive right into a chummy ditty, with Martin strumming on his trusty banjo. Colbert is thrilled to hear how close him and the Father of the Bride star have gotten... but uh awkward, Steve is totally smitten for another BFFL -- A "Garry."

Who is Garry? Does Steve Martin even care for Stephen? And can these two good acquaintances ever hang out in a forest again? We'll see; until then, they can just enjoy the fake nature around them.