The pair bonded while shooting the clip for the K-pop star's solo single.
The singer also said he'd love to collab with Rosalía and that he traveled to Spain looking for inspiration for his second solo album.
Both the song and video will arrive Friday (March 10), along with the band's highly-anticipated 12th mini album.
The pastoral poster announcing the project teases a release before month's end.
36 total non-English hits have reached the top 10, including a record seven in 2023 alone.
The trek is the group's fifth total world tour and its largest yet.
The collection is due out in late March.
The singer said he has a lot in store for fans this spring.
The doc covers the singer's solo career and 2022 Lollapalooza performance.
"Always be happy and stay well," he told fans.
