Dermot Kennedy took this assignment seriously. The Dublin singer-songwriter wasn't content with merely re-creating his songs as they sound in the studio, or stripping lavish productions down to simple acoustic arrangements. So he got himself a gospel choir.
More specifically, Kennedy and his band flew in from Ireland a day ahead of time to meet and rehearse with members of Washington, D.C.'s Howard Gospel Choir. Every arrangement was painstakingly plotted ahead of time, so that every note would be perfect.