This probably means nothing, but this FB discussion took place when Meadowbrook (Gilford NH) announced the Avetts/Old Crow show on June 8:  

Michelle Peluso Biarrio Saw the Avett Brothers at (Zac Browns) Southern Ground Music &amp; Food Festival in Charleston, SC &amp; they were GREAT!!! Been listening ever since! Loving that they are headlining!
January 23 at 11:47am via mobile · Like · 1

Meadowbrook Hi Michelle Peluso Biarrio. We were at that show as well. Wasn't it great? What did you think of Grace Potter and the Nocturnals?
January 23 at 11:57am · Unlike · 1