G.NA was born as Gina Jane Choi in Edmonton, Alberta, Canada on September 13, 1987, to South Korean immigrants. She moved to her parents' birth country to begin a career in the music industry and was originally slated to be a member of a girl group called Five Girls under Good Entertainment in 2007. However, after the company had financial troubles and went into bankruptcy, and the members left and joined other companies after a year, G.NA followed suit and joined CUBE ENTERTAINMENT.

Despite debuting as a feature on the track “애인이 생기면 하고 싶은 (Things I Want to Do When I Have a Lover)” featuring Bi Rain on July 5, 2010, G.NA really hit it off with her songs “Black & White and “꺼져 줄게 잘 살아 (I’ll Back Off So You Can Live Better) featuring Junhyung“.

Choi would continue to release songs and albums under CUBE ENTERTAINMENT and even made a collaborative track with Aaron Yan for the track “Half (½)”, which was the original soundtrack for his drama 愛上兩個我 (Fall In Love With Me) (2014) until she left the company and the entertainment industry as a whole in 2016 due to a prostitution scandal.