The only detail EW's Michael Ausiello was able to uncover was that "the funny man won't be playing himself," so you know what that means: speculation time!
Let's look at what we know: The episode revolves around a roast of Michael Scott, which Michael apparently requests himself. A few weeks back, a source told TV Week that any guest stars "would be woven into the plotline in such a way as to not interfere with the carefully constructed world of the Scranton branch of Dunder Mifflin."
Could Jack Black be playing a Schrute? A replacement for Ryan? Someone new in corporate (just saying "Jack Black" and "corporate" makes me chuckle)? Or — this might be my favorite — Jan's baby daddy?
Update: NBC has released a description of the episode, which is called "Stress Relief." According to the official summary, "In one plot of the special post Super Bowl episode of The Office, some of the office workers try to secretly watch a bootlegged Hollywood movie during the workday. The movie stars Jack Black and other notable Hollywood actors."
Hmm, is that all? I mean, it seems like he's not really "guest starring" if he's just in some bootlegged Tropic Thunder footage or something . . . right?
How do you picture Black fitting into The Office's world? Sound off below!