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It was a short animation, and was playing the song "it is a mystery". As I recall, a girl was on the screen moving in sync with the song, then played a part of the song and had a close up on the girl's face, continued normally for a while until the final part of the song began and the girl was holding a pumpkin in one hand and a knife in the other, in the end appeared a person (I can not remember if it was man or woman) that was half snake and that was with his tail broken, and the girl in the video was sitting with a bag of candy on her side