MAMAMOO.

MAMAMOO is a 4-member South Korean girl group managed by Rainbow Bridge World. The lineup includes Solar, Moonbyul, Wheein, and Hwasa. Their debut took place on June 18, 2014 with their debut mini album, Hello. The profile also notes that on June 11, 2021, it was announced Wheein did not renew her contract with RBW. Another profile detail is that Hwasa was announced to not renew hers on June 27, 2023. Additional background says that Despite being under different agencies, all four members fully participate in group activities, however due to the separation the group is semi-inactive.