The K-pop group BTS is riding a global wave of popularity to new heights. The seven members — Jungkook (real name: Jeon Jung-kook), V (Kim Tae-hyung), Jimin (Park Ji-min), J-Hope (Jung Ho-seok), RM (Kim Nam-joon), Suga (Min Yoon-gi) and Jin (Kim Seok-jin) — have taken the world by storm, drawing comparisons to The Beatles.