Watch: Taylor Swift Brings Out Nelly In St. Louis

While on tour in St. Louis, Taylor Swift recently brought out a hometown hero at the Scottrade Center. She surprised the crowd as she called out Nelly to perform his hit, "Hey Porshce."

"I mostly think of the fact that one of my favourite artists is from here," Swift announced. What would you say if I told you that Nelly is here?". At this point the crowd probably screamed and flapped about quite a bit, we'd imagine. And this is what happened next.