The Sirens is a group of the four Berlin-based singer- songwriters Lotta St. Joan, Olivia Void, Lena Minder and Mone. Their four voices together are like a flock of birds: perfectly together, yet oddly unpredictable. They present their work as individual singer- songwriters, rearranged for four voices (and a few guitars). For fans of Joni Mitchell, First Aid Kit, Boygenius and Leonard Cohen.