Vocalist group Arstidir is from the Icelandic city of Reykjavik, but they sound as if they are angels from the heavens above. <br /> <br />They posted this video of an a cappella hymn performance in a German train station a month ago, but the piece is still trending online. <br /> <br />The way the tunnels reverberates their voices literally brought commuters to a halt in awe. <br /> <br />Like us on Facebook: http://facebook.com/arstidir <br />DOWNLOAD A BUNCH MORE MP3s http://goo.gl/M8xQPG <br />Buy sheet music: http://goo.gl/CIBl9V
