This is a simple song, gonna write it for a friend
My shirt is inside out, I'm messy with the pen
He met Margaret on a rooftop, she was wearing white
And he was like: I might be in trouble
He had flashes of the good life, he was like
Shall I jump off this building now or do it on the double?

'Cause, baby, if your love is in trouble
Baby, if your love is in trouble
Baby, if your love is in trouble

When you know, you know
When you know, you know
It kinda makes me laugh
Running down that path
When you're good, it's gold
'Cause when you know, you know

A word to all my friends
With their red fires, their white ice
Their black eyes and their blue lies
If you're asking yourself: How do you know?
Then that's your answer, the answer is no

Yeah, gotta run around, around, around like your head's on fire
Run away like your head is on fire

'Cause, baby, if your love is in trouble
Baby, if your love is in trouble
Baby, if your love is in trouble

When you know, you know
When you know, you know
It kinda makes me laugh
Running down that path
When you're good, it's gold
'Cause when you know, you know

When you're old, you're old
Like Hollywood and me
The diamond on your ring
The song that you bring to the table
The one that makes me sing, 'ing in a minor key

'Cause when you know, you know
When you know, you know

So if you don't know
Don't give up
'Cause you never know what the new day might bring

Maybe tomorrow you'll know
Maybe tomorrow you'll know
Maybe tomorrow you'll know
I mean, join the party
By the way, the party is December 18 (hey, let's waltz this out, 'cause)

'Cause when you know, you know
When you're old, you're old
Like Hollywood and me
That diamond on your ring
The song that you bring to the table
The one that makes me sing, 'ing in a minor key
Diamond on your ring

'Cause when you know, you know
When you know, you know