Sweden’s singing sisters First Aid Kit on their tribute to Leonard Cohen and their next album Exclusive FOR this special concert, Sweden’s singing sisters are dressed in flowing white trouser suits. Their VIP guest is a familiar figure sitting, legs crossed, in the front row of the audience and gazing up at the stage. 7 Sweden’s singing sisters First Aid Kit on their tribute to Leonard Cohen and their next album He’s immaculately turned out in a dark tailored suit with matching trilby and his wonderfully lived-in face is wreathed in smile They are Klara and Johanna Söderberg of First Aid Kit and he is Leonard Cohen — except that the Canadian icon isn’t really there and his presence is merely imagined.