Travelers passing through Nashville International Airport on Saturday were treated to a treat when Keith Urban put on an impromptu jam session. He put on a 30-minute performance promoting the radio release of his new single “Messed Up As Me.” The airport posted on social media, saying, “What a day to be at BNA! The incredibly talented Keith Urban surprised passengers this morning and performed on our BNA Live Stage in C Concourse.” Have you ever seen a surprise performance? Who was it?