F7       Bb         F7           Bb           F7
When the little Bluebird who has never said a word
          Bb     Bb+     Bb6     Bb+ Bb F+ Bb6
Starts to sing: “Spring, spring”
F7       Bb         F7           Bb            F7
When the little Bluebell, in the bottom of the dell
          Bb     Bb+   Bb6   Bb+ Bb F+ Bb6
Starts to ring: “Ding, ding”
Bb+      Gm     Gm/F# Gm/F          C7            F7
When the little blue  clerk, in the middle of his work,
         Bb          Bdim    F7
Starts a tune to the moon up above
F+    Bb             Bb7         Eb                 Ebm Bb   F+ Bb6 F+ Bb6
It is nature, that’s all, simply telling us to fall in  love

F+             Bb    Gm     Cm   F7
And that’s why birds do it, bees do it
Bb     Bb7      Eb    Ebm   Bb      Gm    Cm      F7      Bb   Bdim
  Even educated fleas do it,  Let’s do it.  Let’s fall in love
Cm  F7         Bb   Gm    Cm   F7
 In Spain, the best upper sets do it, 
Bb     Bb7        Eb    Ebm   Bb      Gm    Cm      F7      Bb   Eb
  Lithuanians and Letts do it,  Let’s do it.  Let’s fall in love
Bb             Gm        Cm7       Bbmaj7               Bb7
  The Dutch in old Amsterdam do it,  not to mention the Finns
Eb         Ab7      Db                 F7
Folks in Siam do it,  think of Siamese twins
F+        Bb    Gm      Cm    F7
Some Argentines without means do it
Bb            Bb7         Eb    Ebm   
People say in Boston even beans do it,  
Bb    Gm    Cm     F7      Bb   Ebm Bb
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
Electric eels, I might add, do it though it shocks them I know
Why ask if shad do it, waiter, bring me shad roe.
In shallow shoals, English soles do it
Goldfish in the privacy of bowls do it
Let’s do it. Let’s fall in love

Mosquitoes, heaven forbid, do it
So does every katydid do it, Let’s do it. Let’s fall in love
Dragonflies in the reeds do it
Sentimental centipedes do it, Let’s do it. let’s fall in love
The most refined ladybugs do it 
When a gentleman calls 
Moths in your rugs do it. What's the use of moth balls? 
The locusts up in the trees do it 
Even over-educated fleas 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
I’m sure giraffes on the sly do it
Heavy hippopotami do it, Let’s do it. let’s fall in love
Old sloths who hang down from twigs do it
Though the effort is great
Sweet guinea pigs do it; buy a couple and wait
The world admits bears in pits do it,
Even Pekingeses in the Ritz do it, 
Let’s do it. Let’s fall in love.

The nightingales in the dark do it
Larks crazy for a lark do it, Let’s do it. Let’s fall in love
Canaries caged in the house do it
When they’re out of season grouse do it
Let’s do it. Let’s fall in love.
The most sedate barnyard fowls do it when a chanticleer cries.
Highbrowed old owls do it; they’re supposed to be wise
Penguins in flocks on the rocks do it
Even little cuckoos in their clocks do it
Let’s do it. Let’s fall in love

[Instrumental]
The royal set sans regret did it 
And they considered it fun 
Marie antoinette did it - with or without napoleon 
Parliament pleasure bent did it 
Mam'selles every time they're short of rent did it 
Let’s do it. Let’s fall in love