According to her agency Blockberry Creative, LOONA (Heejin, Hyunjin, Hasul, Yeojin, BB, Kim Lip, Jinsol, Choerry, Eve, Chuu, GoWon, and Olivia Hye) confirmed their official debut in Japan on September 15th.

LOONA will pre-release a total of four songs, including "HULA HOP" and "Star Seed-Awakening," the double title songs of her Japanese debut single, as digital music.

"HULA HOOP" was composed by Ryan Jeon, the composer of the title song "PTT (Paint the Town)" of the fourth mini-album "&" released in August, and written by AKIRA, Japan's leading music creator.

In addition, "Star Seed~Awakening~" is a young composer and arranger, drawing keen attention in Japan, and SILENT SIREN's Vocal & Guitar Suu, who wrote lyrics, announced the birth of new songs across K-pop and J-pop.