Rainbow's Jaekyung revealed on SBS Strong Heart that she used to be a designer when she was in middle school. A bit young to have a career but who's going to stop her? On this episode, she revealed, "When I was in middle school, I was designer Jessica Kim. I would design pet collars and deliver to the animal hospitals, but they sometimes denied me because I was so young." She then started to create very cute pet accessories. She said, "The first day, I earned 150000 won ($132 USD). In the first month, I earned about 1500000 won ($1325 USD)." That's a whole lot of money for a middle school student! Jaekyung made Danny Ahn proud when she revealed,

"I did it so that I could buy g.o.d's CD."