I know you are all waiting for their hot debut on Music Bank this week, but until then, you have to check out their hot new song titled "Bad Girl!" They have finally released their debut song after the teasers and the preview of it on their MTV documentary. After listening to this track, it makes me want Music Bank to come even sooner. The new beat and the powerful vocals to this song gives it an extra point. It is definitely going to rise up on the charts. Less than an hour after SHINee's "Ring Ding Dong" was released, we grabbed this... many of you must be excited! After the many girl groups that debuted this year, it really is time for some testosterone. The 6 guys of BEAST seem fully ready to bring their game to the k-pop scene from now on. Coming from Cube Entertainment, you know they will be equipped with the hottest moves like 4minute and bring some unique new qualities as an idol group. I bet Jang Hyun Seung got over being eliminated from Big Bang for good since his group seems to be making quite an impression. Check the hot song out! Do you like it?