Shaking suffered a knee injury during long choreography training for "MAMA" performance. Despite the injury, she has shown great leadership skills and provided guidance for all members of her group.

It wasn't revealed in the clip but one of the online articles hints that Shaking was transported to the hospital to get a cortisone shot to relieve pain and inflammation. Without that she wouldn't be able to perform on stage. What a charismatic leader she is!

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