EXO-CBX, the first ever EXO sub-unit, has released their music video for the track, “Crush U”. “Crush U” is an OST for the South Korean drama, ‘Blade & Soul” and the great track has been catching the attention of many for how catchy it is. The song is produced by Yoon Sang. You can check out Baekhyun, Chen and Xiumin…