At Beatles Code show, Exo told a true story about their MAMA MV.
MC : I heard that SM Building have many ghosts stories.
Baekhyun : There's a strange sound only in the MV of MAMA. We've never recorded the song with a female singer. But we keep hearing a female's voice only in the MV.
MC : What did she said??
Baekhyun : The voice says, "XIE XIE" it seems like that voice wants to Thank you everyone.
Lay : I usually don't believe ghost, but I got goosebumps after hearing it.
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Who already heard it? I already. That's voice really make me feels goosebumps. ><... and I can't sleep after hearing it.