2019: Debut with "New Start"
On October 20, it was confirmed by OSR Entertainment that they would debut their first girl group and it would count with four former PRISTIN members, being Minkyeung, Gyeongwon, Eunwoo and Yaebin, and one more trainee, who was treated as a hidden member. On October 23, the group's social media accounts were opened, revealing their name to be HINAPIA. On October 25, they released the schedule plan for their debut, set for November 3 with the release of the digital single "New Start" with their debut showcase to be held the following day.
From October 27 to 29, all five concept photos of the members were posted, including the hidden member, then revealed to be Bada, a new trainee of the agency who was known by her dancing skills. On October 30, the group made their first appearance on a television show, performing the song "Drip" on the music show Show Champion and also the group's concept photo was posted.
On December 9, HINAPIA released their official color, Red Dahlia, as well as their fan name, UBY.
|Minkyeung (민경)||Leader, Lead Vocalist, Visual||2019–present|
|Gyeongwon (경원)||Lead Rapper, Lead Vocalist||2019–present|
|Eunwoo (은우)||Main Vocalist, Face of the Group||2019–present|
|Yaebin (예빈)||Main Rapper, Lead Dancer, Vocalist||2019–present|
|Bada (바다)||Main Dancer, Vocalist, Rapper, Maknae||2019–present|
- "New Start" (2019)
- ↑ Soompi: New Girl Group With Former PRISTIN Members Announces Group Name
- ↑ @OSRent_ on Twitter: 안녕하세요. OSR 엔터테인먼트입니다. 기존 '알슬빛'엔터테인먼트에서 2019년 10월 29일 부로 'OSR' 엔터테인먼트로 변경 되었습니다. 감사합니다. (October 29, 2019)
- ↑ @HINAPIAofficial on Twitter: HINAPIA 1st Digital Single Album [New Start] RELEASE PLAN Coming Soon ! (October 25, 2019)
- ↑ @HINAPIAofficial on Twitter: 20191030 MBC MUSIC 쇼!챔피언 (October 30, 2019)
- ↑ Soompi: HINAPIA Announces Official Fandom Name And Color