The track, titled “Dream Glow,” is about overcoming obstacles and pursuing dreams. According to Charli XCX, this collaboration has been years in the making. The singer took a moment to thank her fans via Twitter for the song’s warm reception and to explain how she first met the band that everyone can’t stop talking about . The song had been on her mind for a while, but she hadn’t figured out a way to work it into one of her albums. “Then in 2017 I went to Seoul for a festival and to do some recording and I met with BTS. They were all so cool and nice and welcoming and that’s where the idea of a collaboration came about,” Charli XCX tweeted. “I’m so psyched the song is out. It’s taken on a new life, and all the new parts feel so fresh and cool.”