Here's the site for our bunch, the Singing Men of Arkansas.
http://www.singingmenofarkansas.org/listen.html
I sing 1st tenor in Singing Men and in our church choir.
In the photo on the YouTube link I am in the 2nd row, fourth from the left. The fellow on the extreme left hand side on the first row is the other (road) cyclist in the group, a 2nd tenor and a young guy, who can ride rings around me.
Southern Rail is outstanding!!!
We sing an arrangement of Sixteen Tons similar to that performed by the Queensmen, and I enjoyed listening to them as well.