Hey, Deb!

I think I found it:

OHolyNight.mp3

(To the uninitiated: Nobody knows who this guy is, but please trust me when I say you need to have a tissue handy when hearing this for the first time. No, seriously. Trust me. Also, if you start it, stick it through to the end. If you can manage it, you (and all neighborhood dogs) will be richly rewarded.)