On November 21 episode of tvN's television show 'On & Off', Sunny was seen talking to her good friend K-pop artist BoA.
Sunny answered, "Well, it's definitely one of the things that I have in mind. But the thing is..."
She continued, "I've lost confidence with myself. I've heard my vocal coach sigh after hearing me sing many times. That's when I started to feel like I had a dull singing voice."
BoA commented, "No, I don't think that. I find your singing voice unique and beautiful."
She continued, "It feels like the time when you still have a bunch of homework to do, but school term is beginning soon."
She added, "Releasing my solo album feels like my homework that someone is chasing me after for. Well, I'll talk to the staff at my agency about it in the near future."
(SBS Star)