Wild heart, dressed in jewels
She on a mission, don't you know Ruby rules
Fire up, turn it back around
We can see you rising up about the crowd, you're far away but we can hear you shout
IDER was one of the bands I discovered while listening to Iceland Airwaves playlists. Unfortunately, we didn't catch them, so I can't speak to their live show, but their music is mellow, engaging and beautiful. I've been rolling through their catalog and it's been a bit hard to choose a Most Important, so if you like "King Ruby" be sure and check out some more, it's fantastic.
RIYL: Glass Animals, Sylvan Esso, Joywave, Tame Impala