Andy Samberg's Mark Wahlberg impression - Where did it come from?

It came from stuff like this. Here's Mark Wahlberg in The Happening...



The Happening got its DVD release yesterday, bringing us to the above Mark Wahlberg/Zooey Deschanel exchange. For those left confounded by Andy Samberg's brilliant Wahlberg impression on SNL last week, we encourage you to watch both, then imagine Wahlberg's crackling dialogue replaced with: "Hey pharmacist, how's it going? I like your lab coat and name tag, that looks really great. So you're a pharmacist, right? What's that all about? Where's the cough syrup? OK, well it was great to meet you. Say hi to your mother for me, OK?"

From:
http://defamer.com/5060609/mark-wahlberg-talks-to-pharmacists-about-cough-syrup



Andy's Mark Wahlberg sketch:
http://andysamberg.blogspot.com/2008/10/andy-samberg-is-mark-wahlberg-talking.html