Writing and performing various songs mostly aimed at children, they released seven albums, two of which received Spellemannprisen, the Norwegian Grammy.[2] They had several #1 hits, including "Grevling i taket", "Hallo! Hallo!" and "Dum og deilig". Since the late 1990s, they have enjoyed a cult status among young Norwegians, performing a series of reunion concerts.[1]
October 26, 2006, TV 2 broadcast the program Knutsen & Ludvigsen - The Full Story. The Norwegian Pop & Rock Encyclopedia says: "This was more than a famous duo - Knutsen & Ludvigsen was an institution. The whole rock generation of the nineties was nourished by their records."[3]
On 21 April 2010, Gustav Lorentzen died from a heart attack while participating in an orienteering race near Bergen. He was 62.
^Norsk Pop & Rock Leksikon, Oslo 2005: "Dette var mer enn en berømt duo - Knutsen & Ludvigsen var et begrep. Hele rockegenerasjonen fra 90-tallet var oppfostret på platene deres."