It has been said that the closest and most enchanting vocal harmonies are created by siblings. This is certainly borne out in the case of the Swedish duo First Aid Kit. Sisters Johanna and Klara Soderberg are from Enskede, a suburb of Stockholm. For Stay Gold, their third full-length album, producer Mike Mogis (of Bright Eyes fame) is back at the helm, having helped to make the last First Aid Kit album a great success. Mogis showcases the sisters' beautiful Swedish-accented harmonies with rich indie-folk instrumentation.