Tolong jelaskan mengenai JKT48 1st Anniversary Event

1st Generation: Aki Takajo, Ayana Shahab, Beby Chaesara Anadila, Cindy Gulla, Delima Rizky, Devi Kinal Putri, Diasta Priswarini, Frieska Anastasia Laksani, Gabriela Margareth Warouw, Ghaida Farisya, Haruka Nakagawa, Jessica Vania Widjaja, Jessica Veranda Hardja, Melody Nurramdhani Laksani, Nabilah Ratna Ayu Azalia, Rena Nozawa, Rezky Wiranti Dhike, Rica Leyona, Sendy Ariani, Shania Junianatha, Sonia Natalia, Sonya Pandarwaman, Stella Cornelia

2nd Generation: Annisa Athia, Alicia Chanzia, Cindy Yuvia, Della Delila, Dellia Erdita, Dena Siti Rohyati, Dwi Putri Bonita, Fakhiryani Shafariyanti, Intar Putri Kariina, Jennifer Hanna, Jennifer Rachel Natasya, Lidya Maulida Djuhandar, Nadhifa Karimah, Nadila Cindi Wantari, Natalia, Noella Sisterina, Novinta Dhini, Octi Sevpin, Priscillia Sari Dewi, Ratu Vienny Fitrilya, Riskha Fairunissa, Rona Anggreani, Saktia Oktapyani, Shinta Naomi, Sinka Juliani, Thalia, Thalia Ivanka Elizabeth, Viviyona Apriani