There’d Better Be a Mirrorball is the 1st song in their album, The Car.

Lyrics:

Don't get emotional, that ain't like you
Yesterday's still leaking through the roof, that's nothing new
I know I promised this is what I wouldn't do
Somehow giving it the old romantic fool
Seems to better suit the mood

So if you wanna walk me to the car
You oughta know I'll have a heavy heart
So can we please be absolutely sure
That there's a mirrorball?

You're getting cynical and that won't do
I'd throw the rose tint back on the exploded view
Darling, if I were you
And how's that insatiable appetite?
For the moment when you look them in the eyes
And say "Baby, it's been nice"

So do you wanna walk me to the car?
I'm sure to have a heavy heart
So can we please be absolutely sure
That there's a mirrorball for me?
Oh, there'd better be a mirrorball for me

This song is owned by the Label Studio, Domino.
All the credits goes to the Arctic Monkeys and Domino.