One of the episode's most popular comedic moments is a drunken, nonsensical rap performed by Professor Duncan.

The of Community , titled " Pascal's Triangle Revisited " (Episode 25), aired on May 20, 2010. It serves as a parody of typical season finale tropes—specifically the "love triangle" and the dramatic cliffhanger—while wrapping up the first academic year at Greendale Community College. Plot Summary

Señor Chang is fired after it’s revealed he doesn't have a teaching degree, leading to a confrontation with his rival, Professor Ian Duncan. The Final Scene (Cliffhanger)