1.2.3!

1.2.3! is Liella!'s third song for the single that was released on August 25, 2021.

The song is written by Junko Miyajima, and is composed by Mayuko Maruyama, and arranged by Masaki Iehara.

CD

 * 1) Mirai Yohou Hallelujah! (未来予報ハレルヤ!)
 * 2) Tiny Stars
 * 3) 1.2.3!
 * 4) Mirai Yohou Hallelujah! (Off Vocal)
 * 5) Tiny Stars (Off Vocal)
 * 6) 1.2.3! (Off Vocal)

Audio

 * Does not work on iPad, or any medium that does not support the .ogg audio format.

Live Performances

 * Liella! First LoveLive! Tour ~Starlines~
 * Beisia Culture Hall (Large Hall) in Gunma: October 30 & October 31, 2021
 * Kurashiki City Auditorium in Okayama: November 6 & 7, 2021
 * Manamiru Iwamizawa City Hall (Large Hall) in Hokkaido: November 14 & 15, 2021
 * Orix Theater in Osaka: November 20 & 21, 2021
 * LINE CUBE SHIBUYA in Tokyo: November 25 & 26, 2021
 * Kitakyushu Soleil Hall in Fukuoka: December 4 & 5, 2021
 * NTK Hall (Forest Hall) in Aichi: December 11 & 12, 2021
 * Hall of the Forest 21 in Chiba: December 17 & 18, 2021
 * Phoenix Plaza (Large Hall) in Fukui: December 25 & 26, 2021
 * Sendai Sun Plaza Hall in Miyagi: January 8 & 9, 2022
 * Tokyo Garden Theatre in Tokyo: January 15 & 16, 2022
 * Liella! 2nd LoveLive! ~What a Wonderful Dream!!~
 * PIA ARENA MM: March 12 & 13, 2022
 * Nippon Gaishi Hall: April 2 & 3, 2022
 * Osaka-Jo Hall: June 4 & 5, 2022