"A Brand New Day" is a song by J-Hope and V of South Korean boy band BTS and Swedish singer Zara Larsson, released on June 14, 2019, as the second single from the BTS World: Original Soundtrack. It was produced by Mura Masa. Background "A Brand New Day" has been described as an "electronic hip-hop song", with instrumentation featuring a prominent daegeum, a Korean bamboo flute, and producer Mura Masa providing an accompanying beat. Track listing Charts Release history References 2019 singles 2019 songs BTS songs Zara Larsson songs Macaronic songs Male–female vocal duets Songs written by Zara Larsson Songs written by J-Hope Hybe Corporation singles Songs written by Mura Masa