Singer and songwriter Yoon Jong Shin thanked Park Jin Young for helping Park Ji Yoon become such a skilled singer.
In the course of Park Ji Yoon's comeback performance for her single album "Mr." held at Ilchi Art Hall in Cheongdamdong, Seoul on October 21, Yoon Jong Shin expressed, "It seems Park Ji Yoon received a lot of help while working with Park Jin Young
He continued, "I met up with Park Jin Young and personally thanked him. I am aware that J.Y. Park gave Park Ji Yoon hard training. Maybe that's why her basics are so solid. She learned well under JYPE. Park Jin Young is known for his perfectionism, and in my eyes, she possesses sturdy basics, perfect pitch, and a good sense of rhythm. That all came to me like that. I liked requesting songs for her to do, and I think she learned well."
He then confessed that Park Ji Yoon was one of the original motivations for Park Jin Young infamous 'half-air half-sound' technique. "As she recorded songs under JYPE, she learned her singing skills. I think it's because she has been receiving vocal training since elementary school. The original singer of the half-air-half-sound technique is Park Ji Yoon."