Can you believe Joanna just turned 39 yesterday?! The HGTV Fixer Upper star got her start on "TV" before she was even with Chip! If you've read their book, or you're just addicted to their series, you know that Joanna started working at her dad's Firestone shop. In fact, that's even how she met Chip!
She starred in his commercials, and as you can see, she's a natural...