January 2, 2011 - G-Star's Third Korean Single MV Teaser

G-Star will be releasing their third Korean single in January 6 and SM had released the MV teaser.

Click here to watch the teaser.

G-Star's Sang Hee and Jang Mi are taking their turns in doing the ad libs. In Magic we get to hear Jang Mi doing the ad libs and in Shady Girl it was Sang Hee. In Shy Boy it's Jang Mi's turn.

Why can't the two do ad libs together?