Complex sentence: Norway will participate in the Eurovision Song Contest 2013 in Malmö, Sweden, and have selected their entry through a national selection "Melodi Grand Prix 2013", organised by the Norwegian broadcaster Norsk rikskringkasting (NRK).
Split into simpler sentences: Norway will participate in the Eurovision Song Contest 2013 in Malmö, Sweden. The Norwegian entry was selected through the national selection "Melodi Grand Prix 2013", organised by the Norwegian broadcaster Norsk rikskringkasting (NRK).