Erik og Kriss is crap, also Karpe diem. tho their more popular, duno why really.. In my opinion there's only kids or inbred people who listen to it. What I would recomand;
Real norwegian rock for me only mean; Jokke & Valentinerne!

http://www.youtube.com/watch?v=VVAkElIe7po

http://www.youtube.com/watch?v=vdyaLEYTioM