Last May, girl idol group 4minute released a video clip of behind-the-scenes of their first concert in Japan. The clip contains footages of the members practicing hard and scenes of Japan fans passionately cheering the group. After the concert, each of the 4 minute members couldn't hide their excitement and nervousness towards performing their own solo concert for the first time. Member Hyuna especially commented, "Was I the only one who missed a step? I was totally shaking." In addition to talking about their experiences of performing their first concert ever, the members also left a message and goal to work harder in order to have a solo concert in their home country, Korea. http://www.youtube.com/watch?v=vzP4eWL1hK0 Meanwhile, 4minute is receiving a lot of popularity through their newly released song Hit Your Heart and is busy with promotional activities.