The trio consists of lead vocalist Laufey Soffía, bassist Margrét Rósa Dóru-Harrýsdóttir and keyboardist Sólveig Matthildur Kristjánsdóttir.

The band has played the famous Dutch music festival Roadburn, been championed by Robert Smith of the Cure and opened for Placebo, Alcest, and Ville Valo of HIM.

Kælan Mikla formed in 2013 as an entry for a local poetry contest hosted by the Reykjavík City Library, combining Matthildur's written poems with Rósa's bass and Soffía's vocals.

The group won first place at the poetry slam and encouraged by the reception, decided to continue making music.

[12][13] On 6 April 2021, the band released "Sólstöður", the lead single to their fourth album Undir köldum norðurljósum ("Under the Cold Northern Lights").

The song is "an ode to the darkest night of the year, when witches summon winter spirits in the frozen vastness of Icelandic landscapes.

[16] 2023 the band performed together with Bardi Johannsson at Transilvania International Film Festival to the Swedish 1921 silent movie "The Phantom Carriage".

[1][2][3] Revolver described their sound as containing "sweeping eerie soundscapes, irresistible post-punk hooks and dance beats couple with angelic voices and blood-curdling shrieks.