Unfaithful这首歌曲收录在其第二张专辑《A Girl Like Me》中。专辑于2006年4月19日先行在日本发行，随后分别在4月24日，25日于英美两地发行。首波主打歌曲S.O.S成为蕾哈娜第一首Billboard冠军单曲。

Story of my life

Searching for the right

But it keeps avoiding me

Sorrow in my soul

cause it seems that wrong

really loves my company

Hes more than a man

and this is more than love

the reason that this guy is blue

the clouds are rolling in

because I'm gone again

and to him I just can't be true

and I know that he knows I'm unfaithful

and it kills him inside

to know that I am happy with some other guy

I can see him dying

I don't wanna do this anymore

I don't wanna be the reason why

Everytime I walk out the door

I see him die a little more inside

I don't wanna hurt him anymore

I don't wanna take away his life

I don't wanna be...

a murderer

I feel it in the air

as I'm doing my hair

preparing for another day

A kiss up on my cheek

He's here reluctantly

as if I'm gonna be out late

I say I won't be long

Just hanging with the girls

A liar didn't have to tell

Because we both know

where I'm about to go

and we know it very well

cause I know that he knows I'm unfaithful

and it kills him inside

to know that I am happy with some other guy

I can see him dying

I don't wanna do this anymore

I don't wanna be the reason why

Everytime I walk out the door

I see him die a little more inside

I don't wanna hurt him anymore

I don't wanna take away his life

I don't wanna be...

a murderer

His trust

I might as well take a gun and put it to his head

Get it over with

I don't wanna do this

Anymore (anymore)

I don't wanna do this anymore

I don't wanna be the reason why

Everytime I walk out the door

I see him die a little more inside

I don't wanna hurt him anymore

I don't wanna take away his life

I don't wanna be...

a murderer (a murderer)

No no no no

Yeah yeah yeah