 In late 2006, Kristín acknowledged that she had left múm in the beginning of that year, and published an open letter briefly describing her thoughts on the matter.Kristín Anna appeared on the cover of Belle & Sebastian's 2000 "Fold Your Hands Child, You Walk Like a Peasant" LP with her twin sister, Gyða.She recorded and mixed the "Black Habit" LP by Rings (featuring ex-members of First Nation).