Little Boy Blue

So, she's sitting in her highchair and I've just come out of the shower. David wakes up with her every morning (a godsent). "Little boy blue blow your horn" she announces. "Where did she come up with that?" I ask. David tells me that he sang it to her yesterday when I was at work in the evening. He has made up many alternate endings because he does not know the rest of the nursery tale. For instance: Little boy blue come blow your horn. The sheeps in the meadow, the cows in the corn. Where is little boy blue? "He's sleeping and sitting next to a tree with his kazoo". Okay! What IS the ending?!