Baek Ah (백아) is a South Korean singer currently under A100 Entertainment. She is a member of the girl group NeonPunch.
She was a former contestant on the survival show MIXNINE, but was eliminated in Episode 13 with her final rank being #22.
Baek Ah was revealed as an upcoming member of NeonPunch on October 11, 2017. Around the same time, Baek Ah joined the survival show MIXNINE under her real name as representative of her agency and upcoming idol group, but was eliminated in Episode 13. Her final rank was #22.
On June 27, 2018, Baek Ah made her official debut with NeonPunch with their debut single album “Moonlight”.
Source: kpop wiki