YB’s lead vocalist, Yoon Do-hyun, expressed his regret to fans about postponing the Ulsan concert. His message conveyed both disappointment for the audience who had been eagerly anticipating the show and a sense of responsibility towards his performance.
On February 10, Yoon’s agency, D Company, officially announced the postponement of the YB Remastered 3.0 Ulsan concert. They stated, “We deeply appreciate the fans who have been looking forward to this week’s Ulsan show. We sincerely apologize for not being able to meet your expectations.” The agency explained, “The artist has been battling cold symptoms since last week and has been diligently working to recover while receiving medical treatment alongside concert preparations.”

However, Yoon’s throat condition worsened dramatically after the weekend performance, and medical professionals advised him to focus on treatment for the time being. After careful deliberation among the artist and concert organizers, they reluctantly decided to postpone the Ulsan concert to ensure the stability of the upcoming tour. D Company emphasized that this decision was made to prioritize the artist’s health and to responsibly continue the tour, once again expressing their apologies to the audience.
Yoon himself shared his thoughts, saying, “My heart is incredibly heavy.” He promised, “I’ll dedicate myself to treatment and return to my best condition for the Gwangju concert.” He candidly discussed his current health status and recovery efforts, revealing, “I’m undergoing new treatments daily, including hyperbaric oxygen therapy and IV treatments.” His words clearly conveyed his genuine commitment and sense of responsibility towards his performances.
Yoon’s health issues are particularly poignant for his fans. In 2021, he was diagnosed with a rare cancer, mantle cell lymphoma, and after nearly three years of treatment, he was declared cancer-free. The news of his diagnosis had shocked many, and Yoon’s open sharing of his treatment journey and life post-recovery resonated deeply with the public.
In a video on his YouTube channel ‘Weiracle’, Yoon recalled the moment of his cancer diagnosis. He shared, “I was in the bathroom when the hospital called, urging me to come in immediately. I hoped it wasn’t cancer, but I was so tense that I asked the doctor straight away if it was cancer, and he confirmed it.” He also honestly expressed his fear upon learning it was a rare form of cancer.

At the time, doctors explained the treatment possibilities but warned of the difficult journey ahead due to strong medications. Yoon decided to pause his activities to focus on treatment. With his wife and daughter staying in Jeju Island, he chose to recuperate at a friend’s mountain café, not wanting his family to see him struggle.
The treatment process was challenging. Yoon felt deep despair when he learned that the first round of treatment had failed and his condition had worsened. He continued with radiation therapy while maintaining his radio schedule, enduring both physical and mental hardships. After radiation treatment, the uncertainty of potential recurrence added to his anxiety. Fortunately, six months later, tests confirmed that the cancer had completely disappeared, leading to his full recovery.
This experience has profoundly impacted Yoon’s approach to his career and life. He now approaches his performances and musical activities with even greater seriousness, valuing his commitments to fans above all else. This context makes the news of the Ulsan concert postponement particularly heartbreaking.
Currently, Yoon is prioritizing his treatment and recovery. His decision to take a brief hiatus rather than push through reflects his commitment to sustaining his long-term career in music and performance. Fans are rallying behind him, supporting his recovery and eagerly anticipating his return to the stage.
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