Song (Youtube link)
"Down in the River to Pray" (also known as "Down to the River to Pray," "Down in the Valley to Pray," "The Good Old Way," and "Come, Let Us All Go Down") is a traditional American song variously described as a Christian folk hymn, an African-American spiritual, an Appalachian song, and a gospel song. It gained popularity in 2000 after Alison Krauss performed it for the soundtrack of the Coen Brothers film, O Brother, Where Art Thou?
The version heard on the show is by the production company We3Kings. However, the artist is unknown. It was used for Nia's solo "Down to the River" in Wingman Down.