* HeyItsThatGuy
** ''Medúlla'' features the big name beatboxers Rahzel, Shlomo and Dokaka (it was essentially his big break). MikePatton appeared on a few songs, most recognizably singing the baritone backing vocals in "Where Is The Line".
** The atmospheric haze in the background of "Náttúra" is [[Music/{{Radiohead}} Thom Yorke]].
* OneOfUs: ''Homogenic'', ''Vespertine'', ''Medúlla'', and ''Biophilia'' are all named after scientific terms and phenomena.
* WhatCouldHaveBeen: She was originally approached to perform "[[http://www.youtube.com/watch?v=zkXbzffVl44 Gollum's Song]]" for Film/TheLordOfTheRings, but declined, citing her pregnancy. Fellow icelander Emilíana Torrini performed it instead.

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