Following T-ara's Jiyeon's apology on Twitter yesterday, the producers of MBC's 'Music Core' made a formal apology post through their message board on June 26th. The post read:

"Hello, this is the production team for Show! Music Core. We would like to apologize for disturbing viewers with an audio error during the live broadcast of Show! Music Core. While F.T. Island was performing 'Hello Hello', the voice of our MC introducing the next performer went out live. As it is a live broadcast, the MCs usually practice their lines during performances, and we believe that this was the case this time. This is 100% the mistake of the producers, and we promise to work hard so that this mistake does not occur again. We will make sure that we create a better show. To all of the viewers that love Show! Music Core, we would like to once again apologize for the mistake. We will work hard to become a better Music Core. - From the production team of Show! Music Core-"