Indigo Girls with The War & Treaty
Wolf Trap 1551 Trap Road, Vienna, VirginiaThe only duo with top 40 titles on the Billboard 200 in the '80s, '90s, '00s, and '10s, enduring folk rock icons Indigo Girls return to Wolf Trap for a night of “acoustic arrangements with a side of…shimmering vocal harmonies” (E! Online).