Throughout time, there have been classic duos: Lenny and Squiggy, Cagney and Lacey, Hall and Oates. The Indigo Girls are no exception. Their pristine and luminary vocal harmonies alone make crowds hoot and holler. Each song has a totally different energy and tension. With their more lighthearted and witty songs, Emily Saliers and Amy Ray play off each other like a comedic duo. Other times, their songwriting and arrangements are so clever, you would think that the two fight crime on the side. Their musical relationship takes on many turns, loops, and jumps. Saliers' musical roots dig deep into Joni Mitchell's gentle song soil, while Ray's influences stem from a much harder background of influences, including the Pretenders and the Husker Dude, Bob Mould.