DESCRIPTION:
I HAVE NO AFFILIATION WITH THIS CLIP OF MUSIC OR "THE STANLEY PARABLE", THEREFORE I TAKE ABSOLUTELY NO CREDIT FOR THIS.

Found this in one of the endings in The Stanley Parable (2013 version) and I didn't see it on the web yet, so I thought I'd record and upload it (EDIT: Turns out I found one right after I uploaded this one). Recorded with Fraps. I named it "The Stanley Parable Song" only because I have no idea what the original title of the song is, if there is one.

These lyrics could be a bit off in one or two places, but I think they're mostly accurate:

There once was a man named Stanley
Who people considered so manly
But the truth must be told
He was not very old
And was quite particularly gangly

What Stanley liked most was buttons
He pushed them like some kind of glutton
He did it all day
In a meaningful way
But his brain had long ceased to function

Which is why he is in this parable
And lives existence quite terrible
And if you are not strong
And keep playing along
You too will become quite unbearable

Yes
You too will become quite unbearable