What girl group writes and composes their own music and also debuted a single and music video on the same day?
Pristin Pristin (Hangul: 프리스틴 ; stylized as PRISTIN and formerly known as Pledis Girlz) is a South Korean girl group formed by Pledis Entertainment in 2016. The group is composed of ten members: Nayoung, Roa, Yuha, Eunwoo, Rena, Kyulkyung, Yehana, Sungyeon, Xiyeon and Kyla. Most of them appeared on the television show "Produce 101" and, as the prize for becoming two of the top contestants, Nayoung and Kyulkyung went on to debut as part of the project girl group I.O.I, before reuniting with the other members to debut as Pristin on March 21, 2017, with the first mini album "Hi! Pristin". Like their labelmate group Seventeen, Pristin is known for writing and composing their own music.
Tokyo Girls' Style Tokyo Girls' Style (東京女子流 , Tōkyō Joshi Ryū ) (stylized as TOKYO GIRLS' STYLE) is a Japanese idol girl group created by Avex Trax. Originally consisting of five teenage members, Miyu Yamabe, Hitomi Arai, Yuri Nakae, Ayano Konishi and Mei Shyoji, the group was the first idol group that Avex had created in seven years. Konishi retired from the group in December 2015.