It was just something that Breland wanted Urban to hear for inspiration, though; he didn't expect his fellow artist to offer to turn it into a song with him.
Country music is as American as football / apple pie / insert-any-other-cliche-phrase-here, so it makes sense that, from time to time, the genre's artists would don some patriotic clothing.
There's nothing like a concert: the spectacle of live music, the experience of seeing songs you love brought to life ... and the possibility of the unexpected.