If you haven’t seen Andy Samberg on Saturday Night Live, you’re truly missing out on some hilarious comedy.

During a College Class Day speech at Harvard yesterday, Samberg did his popular impersonations of Facebook CEO Mark Zuckerberg and actors Mark Wahlberg and Nicolas Cage. The other speaker was Barney Frank, so the students definitely lucked out by getting Samberg.

If you remember Facebook’s f8 conference last year, Samberg opened up the event with his spot-on impersonation of Zuck.

Here’s the piece with the impersonations:

If you’d like to watch the entire 20 minute speech, check it out here: