Prior to Le Sserafim‘s formation, the band’s members were all involved in entertainment. Sakura had been acting and in 2011 joined the Japanese idol group HKT48 as a first generation trainee. She became a full member of HKT48 Team H in 2012 and two years later transferred to HKT48 Team KIV. She spent the next decade with the group and officially graduated in 2021. Along with Kim Chae-won, and Huh Yun-jin, Sakura then participated in the reality competition series Produce 48 in 2018. Sakura and Chae-won were named to the final line-up of the show’s project girl group, Iz*One, and stayed until its disbandment in 2021. Kazuha was a professional ballerina, while Hong Eun-chae was a student at Def Dance School.

In March 2021 Source Music announced the formation of a new girl group, Le Sserafim, and released their debut EP, Fearless, in May. It sold over 175k copies on its first day, and went on to hit No.1 on the Japan Hot chart and to be certified double-platinum. Their second EP, Antifragile, came out in October, again hitting No.1 in Japan as well as on the US World chart. It was later certified triple-platinum. Their debut studio album, Unforgiven, was released in May 2023.

LE SSERAFIM regularly connect with their millions of followers and fans through TikTok, Instagram, Facebook, and Twitter, posting pictures and comments about their musical lives. They also have a dedicated YouTube channel, Le Sserafim

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