Jingle Bells is a classic Christmas song, written by James Pierpoint back in 1857, under the original title "One Horse Open Sleigh". It has been featured in a number of Family Guy episodes. In "Christmas is Coming", where it was continued with a lesser-known extra few verses.
... In a one horse open sleigh.
Winter killed our child. Medicine was rare. He ran out outside in his bare feet, And then he died right there.
Please don't free the slaves. It's a bad idea. They'll try to get back at us, And that's our biggest fear. Oh!