The Indigo Girls are Amy Ray and Emily Saliers. They met on the playground in grammar school in Decatur, Georgia, USA, and have been playing together since high school.
These are photos from concerts where Indigo Girls played, so they may be of other bands that played the concert as well.
Michael Franti & Spearhead / The Indigo Girls / Hot Buttered Rum String Band / DJ Spooky Sep 8, 2007 San Francisco, California, United States Uploaded by Lilmikesf