Swing low, sweet chariot

$5 to anyone who can tell me the words to this song off the top of your head (the bet only counts if you're from the U.S. and you can't use the internet)

Never heard of the song? I'll give you three hints:

1. It's a lullaby
2. It's a "fight song" of sorts
3. Chris and I heard it about 50 times on Saturday night

The 3rd hint is probably your best bet. Now, if you just knew what we were doing last Saturday night!