AOA held their showcase for "Good Luck" on May 16 at the Yes24 Live Hall on May 16, during which the member got emotional talking about their recent controversies including the incident on 'Channel AOA' and the issues surrounding their MV. 

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ChoA apologized for everything that's happened thus far, getting emotional as she did so. She told the press, "Firstly, this is the first time this kind of controversy has occurred. We want to say that we're really sorry to everyone who felt uncomfortable [about the controversy]. We'll use this as a lesson to make sure that something like this won't occur again. We'll strive to show you an improved image of us, so please look kindly upon us. I'm sorry." 

Seolhyun, who was relaying her thoughts on this recent showcase, got teary-eyed as she said, "I will show you a more prudent side of me from now on. I'm sorry. I'll do my best." Seolhyun's part is around the 0:40 mark in the first clip below. 

Jimin also shed some tears during the showcase, silently crying as she listened to Seolhyun give her thoughts. You can see that she starts crying around the 1:39 mark in the last video below.