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The singer was scheduled to hold a performance titled 'Jang Hyun Seung Special Live in Japan' on January 13 at the Saitama Culture Center. However, his label Cube Entertainment released an official statement on January 4, stating, "We continuously attempted to communicate with domestic agency Leaders Company as well as Japanese performance agency NAMISE... We tried to be considerate so that the agencies could fulfill the unfulfilled requirements of our contract with them because we determined [Hyunseung's] promise with fans as the most important priority, but Leaders Company and NAMISE were ultimately unable to keep their promise to us." 

Cube continued, "Therefore, we have determined that this performance can no longer go on as scheduled, and we have canceled 'Jang Hyun Seung Special Live in Japan'." According to Cube, the involved agencies Leaders Company and NAMISE will take responsibility for the cancellation of the event, including ticket refunds. 

Back in June last year, Hyunseung also canceled a domestic solo fan meeting, due to internal complications. You can read Cube Entertainment's full statement below.