The flight attendants aboard Delta flight 1623 from Atlanta to Denver on July 4 decided to have a little fun with the passengers by holding a trivia contest. The first one to correctly name our national anthem would receive a small prize. The catch? You had to come up and sing it! Bob Montgomery from Atlanta Vocal Project and Steve Kientz from Sound of the Rockies buzzed in at the same time and happily provided an impromptu singing of the Star Spangled Banner. Imagine their surprise to discover fellow barbershoppers at 30,000 feet!