Credit: MICHELLE HOMER / KHOU.com
It's not easy being the warm-up act for George Strait, but Martina McBride didn't disappoint. "I'm the luckiest girl in the world. You know why? Cause I get to tour with George freaking Strait," McBride told the cheering crowd in the middle of her set. She came back later to join Strait on stage for a couple of duets.