The song "Norge i rødt hvitt og blått" (Norway in red white and blue) is played by a passing marching band when journalist Thomas Eriksen is in the city center. This song was written in 1941 as a result of the German occupation of Norway during WW2. It's one of Norway's most famous national songs and refers to Norwegian independence and trust in the citizens protecting the country's values of freedom and democracy. Which is in stark contrast to the events taking place in the series.