On July 10th on SBS "Strong Heart," Yeeun, Jung Jun, Jung Jong Chul, Bang Eunhee, Jo Kwon, Wooyoung, Clara, and Yoo Yun Seok all guess starred to share their stories.

When MCs asked Yeeun about any conflicts in the past in working with Park Jin Young, Yeeun shared honestly, "I didn't really have issues with Producer Park Jin Young but I did with my members."

Yeeun continued, "Since I write a lot of our songs, I play the role as director, too. It leads to some disappointments within the group." She shared that when the members have to record with JYP, they don't want to get in trouble so they prepare their best; when they work with Yeeun, they feel more comfortable so sometimes they come unprepared, without even having rehearsed the melody.

Yeeun reveals her fight with Yubin, "For the song, 'G.NO' on our last album, the rap part was created later than the other parts. Because I was especially excited about that song, I wrote a rap myself and gave it to Yubin, but, she said it wasn't her style." The two had persistently tried their own rap styles during the recording session, resulting in an awkward tension.

With the younger members Sohee and Hyerim, there aren't that many issues because they follow orders better. Yeeun shared how it was more difficiult with Yubin because she's older, and Sunye because she's the same age as her.

"It was fine until the last rap part. I got upset when Yubin said 'all right, all right,' without giving me a chance to finish speaking. The next day, we were able to record it in two or three tries because she had practiced it all night," shared Yeeun, which caused everyone to laugh.