Come see Indigo Girls perform with special guest Becky Warren on Wednesday, June 22 at Humphreys Concerts by the Bay.Contemporary folk icons Indigo Girls have had a long tenure as torchbearers of a modern approach to folk music that incorporates elements of alternative rock, punk, and country into the genre's traditional foundation. Each taking the stage with a guitar and a distinct voice, Emily Saliers and Amy Ray find the right balance of tension and harmony at their live shows, thrilling fans with marathon sets of mainstream hits and cult classics from their extensive catalog. In anticipation of a return to the studio in late 2014 for their 14th album, the Girls are pulling out all the stops on tour, performing alongside some of the country's best symphony orchestras at select dates around the country.The will be joined by special guest Becky Warren. She has gathered acclaim for her songs about other people—veterans on her debut album, War Surplus, and entrepreneurs experiencing homelessness on her second album, Undesirable. For the first time, on The Sick Season (out 10/23/20), Warren turns her focus inward, delivering a deeply personal set of songs propelled by the same catchy, guitar-driven rock that made her earlier albums critical successes.