| Artist name | Roles | Recordings |
|---|---|---|
| Buddy Miller (Nashville singer-songwriter, married to Julie Miller) | vocal | I Boast No More (feat. Buddy Miller) |
| Kenny Meeks | vocal | It Ain't Me, Babe (feat. Kenny Meeks) |
| Artist name | Roles | Recordings |
|---|---|---|
| Andrew Peterson | vocal | Passover Us, The Theme of My Song, While Shepherds Watched Their Flocks |
| Derek Webb | vocal | We Come to You |