What girl group writes and composes their own music and also debuted a single and music video on the same day?
Wee Woo Wee Woo (stylized as WEE WOO) is a song recorded by South Korean girl group Pristin for their first mini album "Hi! Pristin" (2017). It was released as the album's title track on March 21, 2017, and served as the group's debut single. An accompanying music video also premiered on the same day. The song was written by Sungyeon, one of the members from the group, Bumzu, Sophia Pae and Gustav Karlstrom.
Beatwin Beatwin (Hangul: 비트윈; pronounced Between; stylized as BEATWIN) is a South Korean boy group formed by Elen Entertainment (formerly Heavenly Star Content) in Seoul, South Korea. The group currently consists of three members: Sunhyeok, Youngjo, and Jungha. They debuted on January 6, 2014 with the single "She's My Girl". Their fans are called "Trophy".