On the May 5 broadcast, BoA took the time to share about her singing career to the trainees. She first talked about the time her voice cracked during a showcase in Japan. She explained, "I had stage fright ever since then. That 3 minutes kept on popping up in my mind. But then I wondered if I would be able to live if I'm not a singer. That's how much I loved this job."

SEE ALSO: NewJeans' Hanni faces illegal stay report, Seoul Immigration set to act once employment dispute is settled

BoA emphasized the importance of self-determination as she continued, "I also had many times when I wanted to give up. But when you let go of the line, no one is going to fetch it back for you. You are the only one who can encourage yourself."

She added, "In this field, the result is more important than the process. There are so many talented people who want to be a singer. If you really want to become a singer, you have to work extremely hard. Your skills will not betray you. People say popularity is like a bubble and I believe one's skills are the water than can grow the bubble."

Lastly, BoA encouraged the trainees by stating that she'll strongly support them til the end.