Behind the scenes footage from the music video of miss A's new song "Good Bye Baby" was recently revealed. Although the girls showed tough charisma in the actual music video, you can see instances of them goofing off on set and showing their cute personalities as they do many random things. When the cameras start rolling, these girls snap right back into fierce mode. When the cameras stop, the girls return to doing their silly things. At one point, they're watching themselves dance on screen through 3D glasses. Fei says, "This is so fascinating. It's like we're popping out," causing Min to have a cute laugh. A little later, Fei says, "They listen to me very well," because all four girls automatically posed for a picture after she counted to three. While three girls later show signs of sympathy towards the male actor because he is drenching wet from his tank scenes, Jia is excitedly clapping on her own. Most likely, she is applauding his efforts and all four agree that he is a talented actor. In the end, Jia thanks everyone for putting in a lot of effort for their music video. Actor Kim Nam Jin says he is a fan and hopes the girls do well on their promotions. Check out the footage below! [Thanks everyone for the tip!]