WATCH: BTS releases teaser for upcoming album

MANILA, Philippines — South Korean boyband BTS surprised fans as they released a new video titled "Euphoria: Theme of Love Yourself ? Wonder" late Thursday.

The nine-minute video, which features Claude Debussy's "Claire de Lune," appears to be the theme of their new album as part of the Korean septet's "Love Yourself" series.

The group — comprised of J-Hope, Jimin, Jin, Jungkook, Rap Monster, Suga and V — has not yet announced the release date of their next album.

The new theme video comes a day after BTS released its new Japanese album "Face Yourself," which features Japanese versions of seven of their hit songs and three new songs — "Don't Leave Me," "Crystal Snow" and "Let Go." — Patricia Lourdes Viray