Based on the Doctor Who episode of the same name. Best skip it if you haven seen ep. 2 yet, it's quite spoilery.
A disappointed face he wears,
To tell you to behave.
A demon's grimace sometimes stares
And bears you to your grave.
The final face, polite and gay,
The one you best recall;
The face that makes it seem ok,
And that's the worst of all.
Nowhere can we hide from it,
The Smilers' silhouette,
Who curses us with knowledge but
Permits us to forget.
And that's the power of our fear.
Amidst the lively throng
We all make sure we'll never hear
The whale's song.