It’s dynamite news for BTS fans. The Korean-pop supergroup’s concert in Seoul on March 12 is set to be broadcast live at movie theaters across the globe. That concert will be one of three performed by BTS at the Seoul Olympic Stadium next month. The seven-member group is also performing at the venue on March 10 and March 13. The shows mark BTS’ first live performances in front of an audience in Seoul since October 2019. Known for songs such as “Dynamite” and “Butter,” BTS has been nominated at the Grammys for best pop duo/group performance in both of the last two years. BTS has six No. 1 hits …