4minute's HyunA and B2ST's Jang Hyunseung (a.k.a. 'Trouble Maker') have been heating things up with their hot debut and Mnet Japan through their program "Exciting Cube" recently gave fans a behind the scenes look at the making of of their music video. Opposite from how they portray themselves with a lot of sexual tension in the music video, you can see that they're actually much more adorable behind the scenes. Check out the video below!