At long last, the Facebook founder co-founder and Social Network star came face to face.

Mark Zuckerberg made a surprise guest appearance on last night’s Saturday Night Live, dropping in on host Jesse Eisenberg’s opening monologue (Zuckerberg’s other impersonator, Andy Samberg, was on the scene too).

“Those guys are such nerds,” Zuckerberg complains.

Here’s how it went for the three ‘bergs…