In his coma-induced dream, Benjamin Franklin (voiced by legendary producer Norman Lear) explains that the U.S. is built on "having your cake and eating it too".
"The Founding Fathers want you all to know that we can disagree all we want, as long as we agree that America kicks ass." Kyle (the closer): "I hate this town. I really, really do."
Look for cameos from past characters like Towelie, Scott Tenorman, and Starvin' Marvin during the final song.
The episode ends with a massive musical number where the entire cast acknowledges they've reached 100 episodes.