“When my mother, who was my entire life, passed away two years ago, BTS’s song ‘Spring Day’ was a great source of strength in overcoming my sorrow.” Yuna Sernelss, 25 years old, a Belgian native and a ...

South Korea is celebrating the reunion of its most famous musical act, BTS. NPR's Anthony Kuhn reports from Seoul, where fans welcome the K-pop group back at a massive free concert over the weekend.