Formed by Gunnar Örn Tynes, Örvar Smárason, and classically trained twin sisters Gyda and Kristín Anna Valtysdóttir in 1997, they soon became electronic key-figures. múm have released on Morr Music & Fat Cat Records & are one of Iceland's most important pop outfits. The band's lineup is in a state of constant change. So is their music.

Múm, the Icelandic band from Reykjavik that has captivated the world with their unique aesthetic. Their delicate and dreamy sound, a fusion of electronica and acoustic, is often compared to Sigur Rós, but Múm has built a unique sonic world with their own innocence and experimentalism.