AOA's ChoA appeared on MBC's 'Radio Star' on May 20 and talked about how hard it had been for her to become a trainee and singer.  

She said, "I really liked [the idea of being] a singer.  I used to look at pictures and stuff when I was little.  I happened to see Girls' Generation when they were trainees.  I was envious of that image.  However, my parents were very against it.  I went around by myself to audition."

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She added, "I failed SM auditions 15 times.  Afterwards, I tried out for JYP and was dropped again at the very end," surprising everybody.

Well, FNC Entertainment saw her potential and now she's a hit star, so all that hard work paid off!  You can also see her mimic Yano Shiho and act cute in the videos below.