“A Brand New Day” is the third song off of BTS' original soundtrack album for BTS World, their official game. BTS' V and J-Hope features on the track, alongside Swedish sensation Zara Larsson. The song is about persevering every day in order to accomplish your dreams & aspirations.

The track is produced by electronic mastermind Mura Masa, harmoniously combining his signature sound with oriental musical instruments. The traditional Korean instrument daegeum kicks off the first-half of the track and leads it on, creating a traditional yet trendy sound.