A few years ago, the idea that a Korean pop, or K-pop, group would perform to sold-out shows worldwide, top the Billboard 200 charts, and dethrone global phenom Taylor Swift's YouTube record for the biggest music video debut, would have been met with some skepticism. But the Bangtan Boys, or BTS as they are popularly called, have managed to accomplish all three feats, proving beyond doubt that music is a “universal language” which transcends across countries, languages, and cultures.