After School were guest's on SBS Kim Jung Eun's Chocolate and they confessed that they practice 8 months straight on how to play the drums.

After School said, "We practiced repeatedly for 8 months on how to play the drums" and said the story behind their comeback.

After School showed intense choreography on their latest hit "bang!" and leader Kahi said that she got the inspiration of the marching band concept from the movie Drum Line.

Also, after repeatedly practicing for 8 months, it was unavoidable to have frequent injuries. Despite the injuries they still continued to practice to perfect it for their comeback.

Also, the youngest member Nana said, "Before Lizzy joined, I was the youngest, but when I saw her she is like a queen of cuteness" she said.

Meanwhile, Nana and Lizzy shared a close relationship, they performed Son Dam Bi's Saturday night on the show. The show will air on the 15th.

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Source: Newsen
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