of the main course rather than at the beginning or the end of the meal. Soups known as guk (국) are often made with meats, shellfish and vegetables. Similar to guk, tang (탕; 湯) has less water, and is more often served in restaurants. Another type is jjigae (찌개), a stew that is typically heavily seasoned with chili pepper and served boiling hot. Popular Korean alcoholic beverages include Soju, Makgeolli and Bokbunja ju. Korea is unique among East Asian countries in its use of metal chopsticks. Metal chopsticks have been discovered in Goguryeo archaeological sites. Entertainment In addition to domestic consumption, South Korea has a thriving entertainment industry where various facets of South Korean entertainment, including television dramas, films, and popular music, has garnered international popularity and generated significant export revenues for the nation's economy. The cultural phenomenon known as Hallyu or the "Korean Wave", has swept many countries across Continental and East Asia making South Korea a major soft power as an exporter of popular culture and entertainment, rivaling Western nations such as the United States and the United Kingdom. Until the 1990s, trot and traditional Korean folk based ballads dominated South Korean popular music. The emergence of the South Korean pop group Seo Taiji and Boys in 1992 marked a turning point for South Korean popular music, also known as K-pop, as the genre modernized itself from incorporating elements of popular musical genres from across the world such as Western popular music, experimental, jazz, gospel, Latin, classical, hip hop, rhythm and blues, electronic dance, reggae, country, folk, and rock on top of its uniquely traditional Korean music roots. Though Western-style pop, hip hop, rhythm and blues, rock, folk, electronic dance oriented acts have become dominant in the contemporary South Korean popular music scene, trot is still continues to be appreciated and enjoyed by South Koreans from older generations. K-pop idols, stars, and groups are well known across Continental Asia and have found international fame in the Western World by making millions of dollars in export revenue by harnessing and tapping into new uncharted music markets beyond East Asia. Many K-pop acts have also been able to secure a strong global following using online social media platforms such as the video sharing website YouTube. K-pop first began to establish and makes it mark on the outside world beyond the confines of Continental and East Asia following the unexpected success