By a long shot, it’s the line from “Little Drummer Boy,” The ox and lamb kept time. You can even drop the pah-rum-pum-pum-pum and it’s still pretty awesome, just because farm animals joining in on rhythm sections gets right to the heart of Christmas magic. Its greatness even overshadows the fact that given that the boy was playing a drum, the additional rhythm by the ox and lamb was completely unnecessary and perhaps even obtrusive. But do you think they just kept time with their hooves? Or do you think maybe they also had percussion instruments? I looked it up, but I guess the New Testament is staying pretty neutral on this one.
You may or may not be surprised to know that a Google image search for “ox and lamb kept time” yields a few worthwhile results, but the following was the standout: