RiRi

Prior to RiRi's debut, both of the members have been active in the entertainment industry: - Serri debuted as a member of Dalshabet in 2011 and has been active as a soloist since 2020. She is also active in various fields, including launching a gelato brand and expanding her scope into the fashion industry. - Gyuri (or Choi Yeon Cheong) is a former Miss Korea and has been active as a model, actress and TikToker in both China and Korea.

She also had experience as a trainee and made her solo debut in 2021. On October 22, 2025, it was reported that Serri and Gyuri had joined forces to form the duo RiRi and would be making their debut with a mini album on November 1. On November 1, RiRi debuted with the mini album Rush (Yes Yes, Call It Love).