After taking a deep breath and pulling herself together, Spears immediately went from dreary to cheery -- smiling and waving to paps as she navigated her black Mercedes through a sea of shutterbugs. What a pro!
While tears didn't actually appear on Spears' face, we're told she unleashed the waterworks inside the restaurant -- and this wasn't the first time we've heard stories of Britney bawling in public. We heard that over the weekend, Brit was sobbing in between club-hopping. What's eating her?










