Trivia

On March 17, the twelfth and final member was revealed to be HyeJu (formerly Olivia Hye). On March 30, "Olivia Hye" was released including her solo "Egoist" featuring JinSoul.

On December 14, Chuu was revealed as the tenth member. On December 28, "Chuu" was released including her solo "Heart Attack" and Yves and Chuu's duet "Girl's Talk".

On June 13, JinSoul was revealed as the seventh member. Her single "JinSoul" was released on June 26, including her solo "Singing in the Rain" and JinSoul and Kim Lip's duet "Love Letter".

On January 15, 2018, Go Won was revealed as the eleventh member. On January 30, "Go Won" was released including her solo "One & Only".

On February 14, ViVi was revealed as the fifth member. Her single, "ViVi" was released on April 17.

On July 12, Choerry was revealed as the eighth member. On July 28, "Choerry" was released, featuring Choerry's solo song "Love Cherry Motion".

On October 28, the second member, HyunJin was revealed in a similar manner. Her solo album, "HyunJin" was released on November 17.

On November 14, Yves was revealed as the ninth member. On November 28, "Yves" was released with her solos "new" and "D-1".

On December 8, more than a month later, member HaSeul continued the pattern by having teasers of her. Her solo album, "HaSeul" was released on December 15.

On January 4, 2017, YeoJin was revealed as the fourth member. Her solo album, "YeoJin" was released on January 16, including her solo song "Kiss Later".

On May 15, Kim Lip was revealed as the sixth member. Her single "Kim Lip" was released on May 23, with her solos "Eclipse" and "Twilight".

On September 26, 2016, the first teaser of the first member HeeJin was revealed on social media.

LOONA's first sub-unit, LOONA 1/3, contains members HeeJin, HyunJin, HaSeul, and ViVi.

On August 30, BlockBerryCreative revealed a teaser for the second sub-unit of LOONA, ODD EYE CIRCLE, which contains members Kim Lip, JinSoul, and Choerry.

On April 27, BlockBerryCreative revealed a teaser for the third sub-unit of LOONA, LOONA yyxy, which consists of members Yves, Chuu, Go Won, and Olivia Hye.