Willy Boy, Willy Boy, Where Are You Going?
Willie boy, Willie boy,
Where are you going?
O, let us go with you
This sunshiny day.
I'm going to the meadow
To see them a-mowing,
I'm going to help the girls
Turn the new hay.

The precise source of this charming melody remains a mystery, but its initial appearance can be traced back to its inclusion in Kate Greenaway's "Mother Goose or the Old Nursery Rhymes" in 1881.
Another version of this rhyme is:
Willy boy, Willy boy,
Where are you going?
I will go with you, if I may.
I am going to the meadows,
To see them mowing,
I am going to see them make hay.