Feminist music icons Indigo Girls (Amy Ray and Emily Saliers) have brought their folk-rock tunes to fans since the late ’80s. Get ready for an evening of hits such as “Galileo,” “Closer to Fine,” “Power of Two,” and more that are sure to help take life less seriously. As Ray and Saliers sing, “it’s only life after all!” Sister duo Larkin Poe opens the show with their gritty and soulful sound.