[Intro: Christina Aguilera & Alicia Keys]
Play somethin' for me, Alicia
There you go, Chris
What's up?
I just got somethin' on my mind
Speak on it, girl
Oh
Oh
Oh, oh, oh, oh
Oh, oh, oh, oh

[Verse 1: Christina Aguilera]
It's impossible, it's impossible to love you
If you don't let me know what you're feeling, yeah, ooh
It's impossible for me to give you what you need, oh, yeah
If you're always hiding from me, oh

[Pre-Chorus: Christina Aguilera]
I don't know what hurts you, I just, I wanna make it right
'Cause boy, I'm sick and tired of trying to read your mind

[Chorus: Christina Aguilera & Alicia Keys]
It's impossible (Impossible)
Oh, baby, it's impossible (Impossible)
For me to love you this way (Hey, hey, hey, hey)
It's impossible (Impossible)
Oh, baby, it's impossible (Impossible)
If you're makin' it this way

[Verse 2: Christina Aguilera]
Impossible to make it easy
If you're always tryin' to make it so damn hard, ooh, yeah
How can I, how can I give you all my love, baby, oh
If you're always, always puttin' up your guard? Oh

[Pre-Chorus: Christina Aguilera]
This is not a circus, don't you play me for a clown
How long can emotions keep on going up and down?

[Chorus: Christina Aguilera & Alicia Keys]
It's impossible (Impossible)
Oh, baby, it's impossible (Impossible)
For me to love you this way (Hey, hey, hey, hey)
It's impossible (Impossible)
Oh, baby, it's impossible (Impossible)
If you keep treatin' me this way (Oh, oh, oh, oh)
Impossible
Impossible, baby (Impossible)
Oh, if you're makin' it this way, this way (Hey, hey, hey, hey)
Impossible
Oh baby, it's impossible (Impossible)
If you're makin' it this way

[Outro: Christina Aguilera]
Oh, yeah
Hey
Ooh, yeah
Ooh, yeah