Stephanie appeared on SBS powerFM's 'Choi Hwa Jung's Power Time' on May 17, where DJ Choi Hwa Jung brought up the picture the singer took with Heechul recently.

Stephanie said, "I've been best friends with Heechul for 11 to 12 years," stating that they knew each other since they were both trainees at SM Entertainment. 

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"When I meet up with Heechul, we talk separately.  It seems for sure like the two of us are exchanging words after meeting up, but if you listen in detail, we are both talking about different things," she added, causing laughter.

The DJ also mentioned how in the past, Stephanie would maintain a mysterious aura as a part of CJSH The Grace.  She suggested that it was better now when she didn't have to keep maintaining that image.  Stephanie said, "That's right.  It was really frustrating [back then]."