The ladies of f(x) made a guest appearance on the latest broadcast of the Golden Fishery segment Radio Star, and Sulli certainly did not skip a beat in her honest talk. The bubbly singer started off by telling everyone, "I went through a lot of torment because of Kim Heechul," a fact known by fans ever since it was revealed that Heechul made Sulli cry when she was younger. However, she elaborated on the thought by recalling, "It bothered me when he joked that my feet smelled and asked if I came without even washing my hair." Despite this, Sulli showed her resilience and bravery by admitting, "I bullied him too. I took a mud-covered ball and threw it at his pants, dirtying them." Speaking of the superstar, Heechul made sure to drop in during the broadcast, straight from recording Come to Play, to ask the staff, "Please take care of my f(x) siblings," a stark contrast to their bad relationship from years past. http://www.youtube.com/watch?v=F3P1n0gJdqo