Kristján Kristjánsson also known as KK is an Icelandic blues and folk musician. His stage name is pronounced "cow cow."
KK was born on March 26, 1956 in Minnesota, United States, but later moved to Iceland with his family. He attended music school in Malmö, Sweden for four years and then played his way across Europe from 1985 until 1990, when he returned to Iceland. He has been nominated for the Gríma Prize twice and has been awarded the Icelandic Music Prize twice.
In 2007 he toured to Shanghai with Magnús Eiríksson ("Maggi") and Óttar Felix Hauksson in advance of the release of their next recording there and in Iceland.In 2010 he played with his band at the World Expo in Shanghai, representing Iceland.
The singer Ellen Kristjánsdóttir is KK's sister. He composed "When I Think of Angels" and he and Ellen perform it in memory of another sister who died in a car crash in 2002. A video of them performing the song produced by the Icelandic Red Cross is used for Red Cross fundraising.
Traditionally, KK and Ellen perform Christmas music every year in Reykjavík.