[Verse:]
Used to be so pure like a diamond fresh out the store
Innocent teacher's pet
It's so crazy how quickly you forget

I was the one baby who let your hair down
I taught you every little trick you're using on me now
Said you got nerve lady
Get your revenge out
We know you'll be coming back around

[Hook:]
So why are you acting so conceited
Gave me no attention
Like I am out of season
I'll frustrate you
Shes so conceited like I don't exist
But she really don't mean it, she really don' mean it

She used to be my girl
She used to be my girlfriend
She took everything but left her heart on my door step
You used to be my girl
I used to be your boyfriend
She will be running back again

[Verse:]
Wow, to her aura like a siren so loud
I can't ignore her
It's amazing
The transformation
Trying to knock me out of her equation (yeah)

I was the one baby who let your hair down
I taught you every little trick you're using on me now
Said you got nerve lady
Get your revenge out
We know you'll be coming back around

So why are you acting so conceited
Gave me no attention
Like I am out of season
I'll frustrate you
Shes so conceited like I don't exist
But she really don't mean it, she really don' mean it

[Hook:]
She used to be my girl
She used to be my girlfriend
She took everything but left her heart on my door step
You used to be my girl
I used to be your boyfriend
She will be running back again

[Bridge:]
If you are trying to get back with bady
Every call up your radio station
Dedicate this one to your lady, to your lady
If you are missing your baby

[Hook:]
She used to be my girl
She used to be my girlfriend
You used to be my girl
I used to be your boyfriend

Why are you acting so conceited
Gave me no attention
Like I am out of season
I'll frustrate you
Shes so conceited like I don't exist
But she really don't mean it, she really don' mean it

She used to be my girl
She used to be my girlfriend
She took everything but left her heart on my door step
You used to be my girl
I used to be your boyfriend
She will be running back again

She's so conceited
Gave me no attention
Like I am out of season
I'll frustrate you
Shes so conceited like I don't exist
But she really don't mean it, she really don' mean it

She used to be my girl
She used to be my girlfriend
She took everything but left her heart on my door step
You used to be my girl
I used to be your boyfriend
She will be running back again