"I Go Looney" is a villain song sung by the Joker (voiced by Mark Hamill) in the 2016 animated superhero film Batman: The Killing Joke which is loosely based on the 1988 DC Comics one-shot graphic novel of the same name.
When the world is full of care
And every headline screams despair,
All is rape, starvation, war and life is vile
Then there’s a certain thing I do
Which I shall pass along to you,
That’s always guaranteed to make me smile:
I go loo-oo-oony as a light-bulb battered bug!
Simply loo-oo-oony, sometimes foam and chew the rug!
Mister, life is swell
In a padded cell,
It’ll chase those blues away:
You can trade your gloom
For a rubber room
And injections twice a day!
Just go loo-oo-oony like an acid casualty,
Or a moo-oo-oonie, or a preacher on T.V.
When the human race
Wears an anxious face,
When the bomb hangs overhead,
When your kid turns blue,
It won’t worry you,
You can smile and nod instead.
When you’re loo-oo-oony, then you just don’t give a fig,
Man’s so pu-uu-uny, and the universe so big!
If you hurt inside,
And if life should treat you bad…
DON'T GET EVEN...GET MAD!!!!!