Glee made its name on enthusiastic unoriginality. The hit TV show, in which high school teens sing syrupy-sweet covers of famous pop tunes, has never really relied on new musical material. But the cover arrangements on the show are often very original—smart, interesting reharmonizations and mash-ups that often make even the tiredest pop tunes sound fresh.
However, with one of their arrangements for next week's episode, Glee appears to have flagrantly stolen an arrangement from geeky songwriter Jonathan Coulton.
Coulton, well-known for his now-classic video game anthem "Still Alive" from the game Portal (as well as for performing on our roof deck that one time), tweeted about the song this morning: