Singer Dan Buckley performs the amazing feat of all 66 vocal tracks on a cover of "This Is Halloween," from Tim Burton's 1993 classic The Nightmare Before Christmas.

In the original, which you can watch below, dozens of stop-motion-animated residents of Halloween-Town sing this anthem at the opening of the film, leading up to the introduction of Jack Skellington, the pumpkin king. Buckley, who not only harmonizes amazingly well with himself on a pretty difficult piece of music by composer Danny Elfman, also does a swell job of imitating all the characters' voices too. 66 tracks! And so many cute shirts. Kudos. Happy Halloween, everyone. [Devour]