2020 on December 31, 2019 in New York City. BTS sends two old songs, “BTS Cypher 4” and "Ugh!," back to the World Digital Song Sales chart, with the former reaching a new all-time peak this week.

If you’re new to K-pop, it can be easy to stick to the most popular songs, but there is more to Korean music than just BTS or Blackpink. While the year may be coming to an end, it’s never too ...