Lyrics:

I don't know how to breathe
I don't know how to leave you
I don't know what to say
And who am I to say it anyway

But there is always a song
And I'll try to sing along over you
I can hear it being sung
All of heaven sings along over you

I hardly know your name
I didn't come to save you
Your smile just broke my heart
Now in my heart I know you'll never leave me

Sing, sing like you've never sung
Sing for your joy to come
Sing, sing like you've never sung
Sing of our joy to come