"Brand New Day" lands afrer last week's Charli XCX collaboration "Dream Glow".
The new single sees BTS members J-Hope and V team up with Zara Larsson and Mura Masa.
BTS new single is the second to arrives after their Map Of The Soul: Persona album, and arrives ahead of their Japanese single "Lights".
"A Brand New Day" is out now. The "BTS World" mobile game launches on 25 June.