《don't know what to do without you》的詞曲由泰勒·斯威夫特（Taylor Swift）完成，其歌詞如下：
Verse 1：
I don't know what to do
Without you here with me
I'm lost without your love
But you're gone and I don't know why
Chorus：
Without you I don't know what to do
In this world without you
It's like my heart's missing one beat
Without you here beside me
Verse 2：
It's not the same without you here
In my heart it feels like you're still here
But you're gone and I don't know why
Chorus：
Without you I don't know what to do
In this world without you
It's like my heart's missing one beat
Bridge：
I'm holding on to memories of you
And I'm trying to keep my head above water
But I don't know what to do without you here with me
Chorus：
Without you I don't know what to do
In this world without you
I don't know what to do without you here with me
Outro：
I don't know what to do without you.