Some friends rewrote the lyrics to the "Buffy the Vampire Slayer" musical episode songs, so that they're now the story of the Lord of the Rings. And the results are hilarious. The lyrics are all available at the above site, along with MP3 files of two of the songs actually being performed (more to be added as they have time).
The title is a play on the name of the "Buffy" musical episode, which was titled "One More With Feeling".