Ólöf Arnalds was born in 1980. In 2006 she graduated from the Iceland Academy of the Arts with a B.A. degree in composition and new media. She's múm's collaborator for the past years, and has also played with many other Icelandic bands and musicians, such as Slowblow or Stórsveit Nix Noltes. One of Ólöf´s most recent collaborations was her part on Skúli Sverrisson's critically acclaimed album Sería where she plays guitar, charanga, viola and sings her own lyrics. Ólöf´s debut solo album Við Og Við was released in 2007 on 12 Tónar. Produced by Sigur Rós' Kjartan Sveinsson.