Brandi Carlile recently talked to Rolling Stone Magazine for their "Women Shaping the Future" issue and she lavished praise on The Indigo Girls. Not only did Amy and Emily greatly influence her music, but also her personal life and activism. Brandi talked about their wonderfully unique harmonies and how she went from being a teenager with their autograph on her beaten up guitar to joining them on stage. About her own songwriting, Brandi said: "I don't ever write a lyric that I wouldn't feel comfortable sending to Emily Saliers." (photo: Getty Images)