The 26-year-old singer-songwriter told The Daily Telegraph that she became tougher after an old collaborator put out some early songs she had hoped would remain unreleased.
Jones said: "It taught me a lot about business. It taught me to not try to be nice - just say no. Be direct.
"It doesn't have to mean you're a bitch; it just means that you know what you want. So I'm usually pretty direct with the label."
When asked if she considers herself to be a Texan, despite being born in New York and living there for the past decade, Jones said: "Yeah. In a big way. I'm ballsy. Well, sometimes I'm ballsy. I like Dr Pepper. I like hot sauce on my eggs.
"I love country music. If I listen to Willie Nelson or Hank Williams I feel at home all of a sudden. I'd love to make a full-on country record, but on this record I really wanted to focus more on the grooves."
> Click here to read our review of Norah Jones's last album