One of the newest trumpet players in the USAF Band (Washington, DC) is from West Palm Beach area. His father shared this link of the band's latest flashmob performances at "Gaylord National Convention Center" in National Harbor, Maryland with a surprise performance of "Dona Nobis Pacem" and "We Wish You a Merry Christmas." (Col. Lang conducting)
https://www.youtube.com/watch?v=mLjLny-nXo8
https://www.youtube.com/watch?v=mLjLny-nXo8