You've heard my "slight" midwestern accent (ha). I was born in Ohio as was my mother and my dad is from greater Chicago. My twang gets way more when I'm on the phone with Mom, but it also shows that I know a real midwestern accent when I hear it.
Yup, this one's real:
And both these guys have one (hilarious):
But I'm sorry, to my ear this one has that "practiced in the bathroom mirror" sound to it. Or maybe she's just spent way too much time in Iowa. They all have.