The poems listed here are from various writings of Tolkien.  Although the majority can be found in The Hobbit or LotR, some come from The Tolkien Reader.  Of course, I do plan on adding more in the future.   Note that not all the poems in Tolkien's writings have names.  I have given names to those that were without so as to make a distinction of it.

O! What Are You Doing?

O! What are you doing,
And where are you going?
Your ponies need shoeing!
The river is flowing!
O! Tra-la-la-lally
here down in the valley!

O! What are you seeking,
And where are you making?
The faggots are reeking,
The bannocks are baking!
O! Tril-lil-lil-lolly
the valley is jolly,
ha! Ha!

O! Where are you going
With beards all a-wagging?
No knowing, no knowing
What brings Mister Baggins,
And Balin and Dwalin
down into the valley
in June
ha! Ha!

O! Will you be staying,
Or will you be flying?
Your ponies are straying!
The daylight is dying!

To fly would be folly,
To stay would be jolly
And listen and hark
Till the end of the dark
to our tune
ha! Ha!