In 2004 and 2005, the duo's uncertain future after their contract with SM Entertainment led to a speculation that they would disband. Brian Joo publicly addressed the rumours on SBS show "Yah Shim Man Man," which aired on July 10. He admitted that the two had difficulties in the early days of their career and said that he had been troubled by feelings of inferiority to Hwanhee, because he received more attention and praise than him. Despite their status as a duo, he felt that he was not given his due or the same amount of attention as Hwanhee. Eventually he found this difficult to bear, and suggested to him that they pursue their separate paths. Hwanhee responded angrily and the matter escalated into a serious fight nearly leading to disbandment. The two reconciled soon after, and said they "grew to better understand each other and realized that they both needed each other." Afterwards, the pair decided to try to better understand each other in order to solve their problems together and to support each other. After reflecting on this incident, Joo's eyes were brimming with tears.