How many octaves can EXID's Solji sing?

On the June 8 airing of SBS powerFM's 'Choi Hwa Jung's Power Time,' EXID appeared and answered questions from the listeners.

Solji was asked how many octaves she can sing, and she replied, "7 octaves...?" but without confidence. She admitted, "Honestly, I'm not quite sure. To tell the truth, my singing parts have a lot of high notes, so I wish that there would be less high notes in the future. Or don't make me go on a diet. I need to eat a lot for me to hit even higher notes," causing laughter.

The members said, "Actually, after debut, she had no strength, so Solji even cried once," surprising fans. They continued, "When we go to the karaoke, even we can't sing our own songs well. Only Solji can."

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Stop making her go on a diet!  Let her eat and sing to her heart's content so we can enjoy even greater singing from this talented artist! Thanks.