Popsugar Celebrity Prince Harry Prince Harry Singing "So Long, Farewell" From Sound of Music Prince Harry Sang "So Long, Farewell" on a Royal Outing, and It's Now Our Favorite Thing March 16, 2019 by Kelsie Gibson View On One Page Photo 5 of 6 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 5 Previous Next Start Slideshow The RoyalsPrince HarryThe British Royals