When the little bluebird starts to sing,
When the little bluebird, Who has never said a word,
Starts to sing: 'Spring, Spring';
When the little bluebell, In the bottom of the dell,
Starts to ring: 'Ding, Ding';
When the little blue clerk,
In the middle of his work, Starts a tune to the moon above,
It is nature, that's all, Simply telling us to fall in love.

And that's why birds do it, bees do it,
Even educated fleas do it,
Let's do it, let's fall in love.

In Spain, the best upper sets do it,
Lithuanians and Letts do it,
Let's do it, let's fall in love.

The Dutch in old Amsterdam do it,
Not to mention the Finns,
Folks in Siam do it, think of Siamese twins.

Some Argentines, without means, do it,
People say in Boston even beans do it,
Let's do it, let's fall in love.

Romantic sponges, they say, do it,
Oysters down in Oyster Bay do it,
Let's do it, let's fall in love.

Cold Cape Cod clams, 'gainst their wish, do it,
Even lazy jellyfish do it,
Let's do it, let's fall in love.

In shallow shoals, English soles do it,
Goldfish in the privacy of bowls do it,
Let's do it, let's fall in love.

In old Japan, all the Japs do it
Up in Lapland little Laps do it
Let's do it, let's fall in love.

The chimpanzees in the zoos do it
Some courageous kangaroos do it
Let's do it, let's fall in love

The world admits bears in pits do it
Even Pekingeses at the Ritz do it
Let's do it, let's fall in love.

The royal set sans regret did it
And they considered it fun
Marie Antoinette did it -
with or without Napoleon.

Electric eels I might add do it,
Though it shocks 'em I know.
Why ask if shad do it, waiter bring me shad roe.

I'm sure giraffes on the sly do it
Even eagles as they fly do it
Let's do it, let's fall in love.