Kristjana Gestsdóttir lives at Hraunteigur in Gnúpverjahreppur, is married to Birgir Örn Birgisson and they have four children.

She works as a secretary.

Kristjana graduatet from The music school of Árnessýsla 1990.

She has accomplished the 7th stage in singing from Söngskólanum í Reykjavík She is a former member of The Icelandic Opera choir among others.