Sha Sha is a six-member girl group from Major Ent. It debuted on February 27, 2018 with its first single album "YOU & ME forever SHASHA", which includes the title track "You&Me" and B-side "Sha Sha". They released a pre-debut song called "White Snow" on December 18, 2017.
On July 20, 2018, I-an, Garam and So-yeop left the group. They were replaced by Chani and Wanlin, but the latter left the group for personal and health reasons, and returned to China.
On May 20, 2019, the group added two new members, Seonhye and Subin.