Indigo Girls are an American folk rock music duo from Atlanta, Georgia, United States, consisting of Amy Ray and Emily Saliers. The two met in elementary school and began performing together as high school students in Decatur, Georgia, part of the Atlanta metropolitan area. They started performing with the name Indigo Girls as students at Emory University, performing weekly at The Dugout, a bar in Emory Village.

They released a self-produced, full-length record album entitled Strange Fire in 1987, and contracted with a major record company in 1988. After releasing nine albums with major record labels from 1987 through 2007, they have now resumed self-producing albums with their own IG Recordings company.Outside of working on Indigo Girls–related projects, Ray has released solo albums and founded a non-profit recording label that promotes independent musicians. Saliers is an entrepreneur in the restaurant industry as well as a professional author; she also collaborates with her father, Don Saliers, in performing for special groups and causes. Saliers and Ray are both lesbians, though not a romantic couple, and are active in political and environmental causes. They are regarded as queer icons.

Source: Wikipedia (https://en.wikipedia.org/wiki/Indigo_Girls)