Kelly Rowland has Attitude!

And for good reason! The former Destiny's Child child played at the Great American Gay Day 2008 this weekend -- but one of her fans brought the show to a stop after hitting her upside the face with a white hat. RUDE! Sista picked that hat up and picked that queen out!

Click HERE to watch!

We are so impressed with Miss. Kelly's manners! She was a WHOLE lot nicer that DISH would have been! BELIEVE!