Baek Ye-bin (born July 13, 1997), better known mononymously as Yebin, is a South Korean singer-songwriter and composer.

[2] Yebin was a trainee of Ensoul Entertainment, where she was slated to debut with girl group Project A, along with fellow members Jenny and Eunchae.

In January 2015, MBK Entertainment announced its plans to debut a new girl group, originally with a strategy to have possible candidates compete on a reality survival program.

Their first official public appearance was on the same day where the group performed a showcase at the Ilchi Art Hall in Seoul.

", "Boyfriend", "April", "Mannequin", "You Are My Flower", "Light", "Listen To This Song", "Not Only You But Spring" and "Independence Movement Day".

They performed their duet "Seoraksan in October" featuring Eunchae on the September 29, 2017, broadcast of Music Bank.

[13] They officially made their debut stage on KBS' Music Bank on the same day as the album's release, where they performed "A Memory Clock" and "No More".