The little voice in my head won't let me forget

I won't tell you what I'm thinking
Cause it's not the same thing you're thinking too
You could say I got a best friend
And she's always telling me what to do
She's out of sight but easy to find
She's in front of my mind

The little voice in my head won't let me forget
The little voice in my head is never mislead
All of this noise is what keeps me from making a mess
All little voice in my head just won't let me get with you