BTS has once again taken the global music industry by storm, with their new album, ‘Arirang’.According to Big Hit Music, owned by Hybe Labels, the album sold around 3.98 million copies on its first day, surpassing their previous first-week sales.As per reports, the album has topped ‘iTunes Top Album’ chart in 88 countries including Italy, Mexico and Sweden.The lead track of the album, ‘Swim’ is dominating ‘iTunes Top Songs’ chart in 90 countries, including the UK, US, Germany and Japan. Its music video is trending on number 1 in 70 counties.BTS made a full-group comeback after four years. The ultimate domination of global music charts shows the unwavering support of fans, also known as ‘BTS Army’, for the world’s biggest boy-band.They held their first live concert, after returning from South Korea’s two-years of mandatory military service, on Saturday at the Gwanghwamun Square in Seoul. The concert went live on Netflix.The seven-member group consisting of RM, Jin, Suga, J-Hope, Jimin, V and Jungkook announced their comeback in January this year and released ‘Arirang’ on Friday.