Pop music appeared in the 1980s with the Pochonbo Electronic Ensemble and Wangjaesan Light Music Band. Improved relations with South Korea following the 2000 inter-Korean summit caused a decline in direct ideological messages in pop songs, but themes like comradeship, nostalgia and the construction of a powerful country remained. In 2014, the all-girl Moranbong Band was described as the most popular group in the country. North Koreans also listen to K-pop which spreads through illegal markets.