You better know what you're doin'
Mmm-hmm, you better know what you're doin'
You better do-wa, do-wa, do-wa, uhh
Before you come knockin' at my baby's door

I don't care how good you look
I don't care how many hearts you took
Before you get your name on my little book
You better not come knockin' at my baby's door

Tell him
(You better know what you're doin')
Tell him
(You better know what you're doin')
Mmm-hmm, you better do-wa, do-wa, do-wa, uhh
Before you come knockin' at my baby's door

I don't look for trouble
It's not my game
But if you try to get this little girl from me
I know I'm gonna stake my claim

(You better know what you're doin')
Tell him
(You better know what you're doin')
Mmmm, tell him, nahh-ahh
You better do-wa, do-wa, do-wa, uhh
Before you come knockin' at my baby's door

(Tell him)
You better know what you're doin'
(Tell him)
You better know what you're doin'
You better do-wa, do-wa, do-wa, uhh
Before you come knockin' at my baby's door

I don't look for trouble
It's not my game
But if you try to get this little girl from me
I know I'm gonna stake my claim

(You better know what you're doin')
Tell him
(You better know what you're doin')
Mmmm, tell him, nahh-ahh
You better do-wa, do-wa, do-wa, uhh
Before you come knockin' at my baby's door

You better do-wa, do-wa, do-wa, uhh