Pentatonix covers Hallelujah

I've been listening to various versions of "Hallelujah" lately thanks in large part to Malcolm Gladwell's Revisionist History episode on the song (I wrote about that here). It's a great song and it's always cool to see different artists cover it in their own way (in fact, arguably the most popular version of the song is a cover of the original!).

Anyway, here's Pentatonix doing a great acapella version of the song.