This is just a part of my curiosity but it'd very nice if anyone wants to help me figuring this out. After watching JKT48's first performance (Heavy Rotation) on the official youtube account, I am curious to find the Heavy Rotation pyramid's initial roster. I mentioned "initial" because it may - and does - change in other performances. So, below's my best guess (some are "unknown" because I do not recognize them - sorry if your oshi's not on the list). Feel free to correct me if I'm wrong. Center: Melo First line: the line which moves together with the center on the "I love you, I need you" parts Fahira (far left) Shania (near left) Cleo (near right) Stella (far right) Second line: the line which moves after the center and the first line on aforementioned parts. Nabilah (far left) Rena (near left) Unknown (middle) Ve (near right) Cindy (far right) Back pairs: the pairs in the back. Achan-Ghaida (far left) Mova-Delima (near left) Unknown-Adisti (nearest left) Unknown-Ochi (middle) Sonia-Sendy (nearest right) Gaby-Jeje (near right) Dhike-Sonya (far right) Note: The "right" and "left" is based on my (the audiences', not the performers') point of view, so the actual "right" and "left" is the other way around.