Great one Taelor. Here is the song
I think the Internationale is a fitting song for libertarianism (or was, until the communists stole it).
If you read the lyrics, there is virtually nothing a radical libertarian would disagree with. The irony is that it became a the national anthem for the Soviet Union. Soldiers refusing to fight, tearing down walls of hatred and of stone… these ideas were diametrically opposed to the official policies of the Soviets. Eventually, the irony became too much for the Soviets themselves, so they changed their anthem to the one about the unbreakable empire. (That, too, turned out to be false.)
Anyway, look at the lyrics:
Arise, wretched of the earth
Arise, convicts of hunger
Reason thunders in its volcano
This is the eruption of the end
Of the past let us wipe the slate clean
Masses, slaves, arise, arise
The world is about to change its foundation
We are nothing, let us be all
|: This is the final struggle
Let us group together, and tomorrow
The Internationale
Will be the human race 
There are no supreme saviours
Neither God, nor Caesar, nor tribune.
Producers, let us save ourselves
Decree the common welfare
That the thief might bare his throat,
That the spirit be pulled from its prison
Let us fan the forge ourselves
Strike the iron while it is hot
|: This is the final struggle
Let us group together, and tomorrow
The Internationale
Will be the human race
The state represses and the law cheats
The tax bleeds the unfortunate
No duty is imposed on the rich
‘Rights of the poor’ is a hollow phrase
Enough languishing in custody
Equality wants other laws:
No rights without obligations, it says,
And as well, no obligations without rights
|: This is the final struggle
Let us group together, and tomorrow
The Internationale
Will be the human race
Hideous in their self-glorification
Kings of the mine and rail
Have they ever done anything other
Than steal work?
Into the coffers of that lot,
What work creates has melted
In demanding that they give it back
The people wants only its due.
|: This is the final struggle
Let us group together, and tomorrow
The Internationale
Will be the human race
The kings make us drunk with their fumes,
Peace among ourselves, war to the tyrants!
Let the armies go on strike,
Guns in the air, and break ranks
If these cannibals insist
On making heroes of us,
Soon they will know our bullets
Are for our own generals
|: This is the final struggle
Let us group together, and tomorrow
The Internationale
Will be the human race
Labourers, peasants, we are
The great party of workers
The earth belongs only to men
The idle will go reside elsewhere
How much of our flesh they feed on,
But if the ravens and vultures
Disappear one of these days
The sun will always shine
|: This is the final struggle
Let us group together, and tomorrow
The Internationale
Will be the human race