Wonder Girls member Yeeun proved herself to be the 'little JYP.'

On June 19, the members of the Wonder Girls were interviewed for their comeback with their second single album, Wonder Party. For this album, Yeeun contributed by writing two songs, "R.E.A.L" and "Girl Friend," showing off her musical skills.

During the interview, the Wonder Girls revealed the behind-the-scene stories of working with Yeeun. Sohee first commented, "We spent a lot of time together so she knows the good qualities of each person. She did a really good job of distributing specific parts to certain members, and she was also a really good leader," complimenting Yeeun's directing skills.

Hyerim said, "I don't know if it's because we learned from our producer JYP too, but she has a lot of similarities with him. She talks a lot about 'half air, half sound'," arousing laughter.

Yeeun then said, "Half air and half sound is really important. All the members have different proportions of sound and air."

She also said, "I sometimes feel it too. If they carry out what they learn and do a good job, I compliment them a lot by saying, 'That's really good'. I act like JYP when I feel like they need to redo something too," admitting that she's the 'little JYP'.