This was so interesting!
- Heartbeat was the first song @djswivel worked on with @BTS_twt 1.5-2 yrs ago
- wrote the song w/ @CoyleGirelli in 2014
- DJ Swivel knew about the video game project
- BH/BTS listened to the track & knew this was going to be the title track https://t.co/ToeQc13Q88

— bora☃️ (@modooborahae) June 28, 2019