K-pop megastars BTS on Wednesday unveiled a video teaser for their upcoming single 'Dynamite'. And, to appeal to their global fan base, the boy band's latest release will be sung in English. The 28-second long video clip hints at a retro vibe...indicating a shift to a disco-pop style. The band's management agency, Big Hit Entertainment, said 'Dynamite' includes BTS members' sincere wishes of sending hope to fans going through a difficult time during the COVID-19 pandemic. The track and video will both be released worldwide on Friday August 21st at 1 PM Korea time.