On the 10th, his label said, "We bow our heads in apology to the people who were disturbed by Yoo Se Yoon's words. At the time, Yoo Se Yoon was very hyped up because he was performing 'Itaewon Freedom' for the first time in a while. He wanted to make the mood even better and ad-libbed, and used a word he shouldn't have. He is deeply apologetic for not realizing that the word was a word you should use neither in public nor in private, and that it was a derogatory word. He will be more careful while talking, and he will become a TV personality that can be a model to everyone. We apologize once again to those who were disturbed."
He and Muzi's team UV were guests at the 'SMTOWN Live' on the 8th for Shindong, as they had an SM STATION song together. After the duo performed "Marry Man" together, they also performed UV's hit "Itaewon Freedom". During his performance, he used a derogatory term for the disabled and had been harshly criticized.