The pastor of the church I sometimes drag my ass to posted this on his blog. I'm still in shock, so I'm going to traumatize everyone else I can (before someone else on the internet beats me to it.)
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Really, you don't have to watch past 1:40 or so... you get the general idea after the first 5 seconds of singing. HOWEVER! Fast forward to about 5:40 for additional oh-holy-crap-of-God awfulness. But then save your souls and turn it off. :]