I learned this tune in grade school as a tribute to spring with the following words:

Rosie, Betsy, blue-eyed Molly, Molly
April is the time for folly, folly
Blackbirds' shouts ring roundabout and Jenny wren is building in the willow
Throw off your cloaks of black and brown
Put on your togs that you wear to town
Run in the meadow up and down
Looking for the nest in the willow
Rosie, Betsy, blue-eyed Molly, Molly
April is the time for folly, folly
Blackbirds shout ring roundabout and Jenny wren is nesting in the willow