"WHAT. DOES. THIS. MEAN?" one fan tweeted.
The star's latest solo track arrives June 27.
The record is due out on July 19 and features collabs with Sofia Carson and Loco.
The set scores the year’s largest sales week for a K-pop album, and marks third chart-topper for the group.
The star recently hinted that her next era is "coming soon."
The star also performed a few of his solo songs at the 2024 BTS Festa.
The K-pop group's honor comes after they participated in the 13th UNESCO Youth Forum in Paris in November.
The star also posted links to pre-save on Spotify and Apple Music.
The track arrives ahead of the K-pop group's Festa event in Seoul.
The June 13 event will feature an appearance by Jin.