Lyrics:

[Verse 1: Alison Krauss]
I could say it's over now
That I was glad to see you go
I could hate you for the way I'm feelin'
My lips could tell a lie, but my heart would know

[Chorus: Alison Krauss & Robert Plant]
It's a sin to make me cry
When you know I love you so
I could tell my heart that I don't miss you
My lips could tell a lie, but my heart would know

[Verse 2: Alison Krauss]
I could give you all the blame
But I'm sure the truth would show
I could tell this world I've found a new love
My lips could tell a lie, but my heart would know

[Chorus: Alison Krauss & Robert Plant]
I can't fool my cryin' heart
'Cause it knows I need you so
I could tell my heart I'm glad we parted
My lips could tell a lie, but my heart would know