CRYSTIALZ was a 5-member Q-Pop (Kazakhstani) girl group under MM Entertainment. The final line up consisted of: Sulu, Mona, Naz, Dia, and Nelly. They originally debuted on January 7th, 2017 with ‘Adastyrma’, re-debuted in late 2017, and later moved to MM Entertainment. They disbanded in early 2021.