Fever Ray just returned with a new album of old songs, The Year of the Radical Romantics. From what I've read, this is essentially a live album; these songs were reworked and recorded live to tape in a studio. So the only thing missing, really, is the sound of a live audience.
I first learned of The Knife in 2006, when Silent Shout was on top of almost every end-of-year list. I had no idea who they were, and it didn't even click right away when I first listened to the album. Eventually, though, it clicked, and I was all in. I wish I had gotten to see them during that period. The darkness. Those synths. Just that eerie and weird ass shit they were doing. I ended up seeing them on what was their final tour for their 2013 album, Shaking the Habitual.
Karin Dreijer started Fever Ray as a side project in 2009. Equally eerie, dark and cool as fuck. Saw them a few times. Really fucking good. There are only three (studio) albums (Fever Ray, Plunge and Radical Romantics) and now there are just as many live albums. Live in Lulea (debut album era), Live at Troxy (Plunge era) and now, The Year of The Radical Romantics. All worth looking up. I would recommend starting at the beginning. And if you're unfamiliar (nothing wrong with that!), go check out The Knife.