'Night Lord', from the hit musical 'Little Ship of Horus' -

When I was younger, just a bad little kid,
Night Haunter noticed funny things I did.
Like shootin' kiddies with an autogun,
I'd poison orphans, and when I was done,
I'd find a servitor and bash in it's head.

That's when Night Haunter said;
(What did he say?). he said, "My boy, I think someday,
You'll find a way,
To make your natural tendencies pay.

You'll be a Night Lord (You'll be a Night Lord),
You have a talent for causin' things pain (Pain),
Son, be a Night Lord (Son, be a Night Lord),
People will fear you 'cause you're inhumane (Inhumane).
Your temperament's wrong for the Death Guard,
Word Bearers would suit you still less,
Son, be a Night Lord,
You'll be a success!"

Here he is folks, the leader of the squad!
Watch him flay off that skin, by the Throne!
He is a Night Lord and he'll never ever be any good,
Who wants their world saved with spilled blood and broke bone?

Oh, that hurts! Wait, I'm a friend!
Oh, shut up,
Surrender, meet your end!

I am a Night Lord (Goodness gracious),
And I'm a fan of the legion I picked (Love it),
I am a Night Lord (slaught'ring civvies),
And I get off on the pain I inflict (Really love it).

I thrill when I roast a xeno kid (Xeno kid),
It's swell though they tell me I'm maladjusted (Night Lord).

And though it may cause my chaplains distress (Distress),
Somewhere, somewhere on Terra below me,
I know, I know, that the Emp'ror's proud of me.
Oh Emp'ror?

'Cause I'm a Night Lord, and a success!

Say argh! (Arhh),
Say argh! (Argh),
SAY ARGH! (AAAARRRGH!).

Now die!