Luke Bryan Surprises Fans with Carrie Underwood Duet!

You never know who you'll run into walking down the street or hanging out at a bar in Nashville - that's the magic of Music City. Just about every country artist has a home base somewhere in or around Nashville. Luke Bryan played for over 18,000 fans at Bridgestone Arena over the weekend, and completely surprised his fans when he brought Carrie Underwood on stage to sing 'Play It Again'!