[Verse 1: Machine Gun Kelly]
I met you in the dark, you lit me up
You made me feel as though, I, I was enough
We danced the night away, we drank too much
I held your hair back when you were throwing up

[Pre-Chorus: Camila Cabello]
Then you smiled over your shoulder
For a minute, I was stone cold, sober
I pulled you closer to my chest
And you asked me to stay over
I said, I already told you
I think that you should get some rest

[Chorus: Camila Cabello]
I knew I loved you then, but you'd never know
'Cause I played it cool when I was scared of letting go
I knew I needed you, but I never showed
But I wanna stay with you until we're grey and old

[Post-Chorus: Camila Cabello]
Just say you won't let go
Just say you won't let go, yeah

[Verse 2: Machine Gun Kelly]
And I never thought for a minute
If you showed me a picture of my life now, that you wouldn't be in it
Took me a couple months to say I loved you, but I meant it
When I said it wasn't much of a romantic, but you get it
Didn't really smoke, but when I rolled it up, you hit it
And we lit it up, shotgunning our kisses
I used to have someone at 3 AM that I could call
Now it just rings and I don't get nothing at all, where you at, girl?
[Pre-Chorus: Camila Cabello & Machine Gun Kelly]
When you looked over your shoulder (Yeah)
For a minute, I forget that I am older (Yeah)
I wanna dance with you right now, woah (Right now, hey)
You look as beautiful as ever (Hey)
And I swear that everyday you will get better (Right)
You make me feel this way somehow, yeah

[Chorus: Camila Cabello]
I knew I loved you then, but you'd never know
'Cause I played it cool when I was scared of letting go
I knew I needed you, but I never showed
But I wanna stay with you until we're grey and old

[Post-Chorus: Camila Cabello]
Just say you won't let go
(Yeah, say you won't let go)
Just say you won't let go, yeah
(Aye, say you won't, say you won't go)

[Bridge: Camila Cabello]
I wanna live with you even when we're ghosts
'Cause you were always there for me when I needed you most
So I wrote this song for you, now everybody knows
That it's just you and me until we're grey and old
[Outro: Camila Cabello & Machine Gun Kelly]
Oh, just say you won't let go, ooh-ooh, nah
Just say you won't let go, oh (Yeah)
Oh, just say you won't let go (Uh, say you won't, say you won't go)
Just say you won't let go, yeah