Having been rushed to the hospital for suspected acute appendicitis yesterday, it was revealed on the 19th that F.cuz's leader, Jinon will not require an operation. Jinon had suffered some discomfort in his stomach area during rehearsals before F.cuz's performance on M! Countdown on the 18th. He was subsequently whisked away to the hospital ER for immediate treatment, leaving F.cuz to perform with just 3 members on the night. But after further diagnosis from the doctors, it was determined that Jinon will not require an operation as it was determined that the stomach pains were caused by an inflammation of his colon walls or otherwise known as diverticulitis. Mild symptoms can be treated with medication although complications could lead to peritonitis, requiring surgery. F.Cuz's representative expressed, "It's still being discussed whether surgery is required. But at this present juncture, it would be impossible for Jinon to appear on music shows scheduled for this weekend. Jinon wants to apologize to his fans for making them worried and he promises to return in a better state next time." F.cuz will thus cancel their scheduled performances on Music Bank and Inkigayo and will return to the stage as a 4-member group again once Jinon has recovered.