MOO, MOO, MOO! MOO, MOO, MOO! I went to visit a farm one day, I saw a sheep across the way, And what do you think I heard it say? BAA, BAA, BAA! BAA, BAA, BAA! I went to visit a farm one day ...

it sounds like the group was busy performing a variation of "Baa Baa Black Sheep"—one of the earliest British nursery rhymes–when Charles joined in. While it certainly takes some sort of ...