“My Universe,” an uplifting pop-rock song about a difficult love, works as the second promotional single from Coldplay’s Music of the Spheres.

The track, written by Coldplay alongside BTS' rappers, originally was made only for BTS, but the artists ended up performing it together. The harmonised chorus vocals were recorded in April 2021 when Coldplay’s Chris Martin visited South Korea. The song marks the first collaboration between the groups.

The rumors about a possible collaboration between Coldplay and BTS go back to February 2021, when BTS surprisingly covered Coldplay’s “Fix You” during their MTV Unplugged session. The performance gained worldwide recognition, and Coldplay took to Twitter to express their admiration for it. After this performance, fans of both bands expressed an interest in the groups collaborating, but the rumors truly sparked when Chris Martin was spotted at Incheon Airport in South Korea. The rumors continued when, during the interview for the promotion of “Higher Power,” he addressed the rumors, saying: “I love them a lot and so if the right song came along, I wouldn’t ever say no.”

In July 2021, part of the song was leaked online, thus confirming the collaboration. BTS' label, BigHit Music, released a press statement about Coldplay’s upcoming new song that supposedly featured BTS saying: “It’s hard to confirm.” Both artists continued hinting at the collaboration for months, with Chris Martin even singing a fragment of “My Universe” (including the Korean verse) on The Kelly Clarkson Show (as was reported by an audience member) and hosted a conversation with BTS for their “Permission to Dance” Challenge on YouTube Shorts.

The song was announced officially on September 13, 2021, with the press release info from both groups.