The Great Irish Songbook is an album of thirteen of the best-loved songs in the Irish tradition performed by Irish music legends Dervish and featuring a stellar line-up of friends: Steve Earle, Kate Rusby, David Gray, Vince Gill, Andrea Corr, The Steel Drivers, Imelda May, Brendan Gleeson, James Johnson, Rhiannon Giddens and Abigail Washburn.