Kim Boa (김보아; or simply BoA) is a South Korean singer currently under ARA-LINE. She is one half of the duo KEEMBO and a former member of the girl group SPICA.
Before debuting as an idol, she was the vocal trainer for the boy group INFINITE. Also, she worked with the music production team Sweetune as a guide vocalist.
On February 10, 2020, she, alongside former fellow SPICA member Kim Bo Hyung, announced their return to promotions as a duo called KEEMBO. The duo officially debuted on April 10 with the digital single "Thank You, Anyway".