Contestants Ulala Session revealed a secret about a member of the group on Mnet's 'Superstar K3'.  The group revealed that one of its members, Lim Yoon Tek, is currently receiving anti-cancer treatment for gastric cancer. On the 16th of this month, on the most recent episode of 'Superstar K3', Oo Lala Session and another contestant Chris went head to head dealing with a mission given to them. Singer Lee Seung Chul, one of the panel judges on the show, asked Lim Yoon Tek "why is it that you keep having short hair?" and Lim's response was "because of the chemotherapy for my cancer". Unfortunately, Lim's condition doesn't look too great. He revealed, "I'm at level 3 gastric cancer and can't do anything about it because it has already spread to my peritoneum. It was disclosed that Ulala session auditioned for 'Superstar K3' on behalf of the sick Lim Yoon Tek. In this episode, Ulala session won the mission against contestant Chris have passed on to the next mission. Source & Image: Nate