|Stage Name||Birth Name||Position||Birthday||Age||Height||Star Sign||C Y||BT Sort descending|
|Aeji 애지||Kwon Aeji||Maknae||18||163 cm or 5'4"||Scorpio||Hare|
|Sojin 소진||Hong Sojin||Sub-vocal||18||163 cm or 5'4"||Libra||Hare|
|Subin 수빈||Oh Subin||Sub-vocal||19||172 cm or 5'7½"||Libra||Tiger|
|Seungmin 승민||Lee Seungmin||Sub-vocal||22||162 cm or 5'4"||Aquarius||Pig|
|SuA 수아||Yang Sua||Dancer||23||169 cm or 5'6½"||Aries||Pig|
|Hyunji 현지||Kim Hyunji||Sub-vocal||25||165 cm or 5'5"||Cancer||Monkey|
|Dajeong 다정||Kim Dajeong||Dancer, Rapper||22||170 cm or 5'7"||Leo||Pig||O|
Hash Tag 해시태그 is a seven-member female idol group under Luk Factory. The group is produced by Kan Miyoun. They debuted on October 11, 2017, with their 1st mini-album The girl next door.
Member Dajeong competed in "Produce 101" as a trainee of Hello Music Entertainment. She was eliminated in episode 5 at rank 62.
On September 8, former Baby V.O.X. member Kan Miyoun confirmed that she would produce a 7-member group named Hash Tag. Starting September 18, for 8 consecutive days, individual and group teaser photos were released. On October 11, the music video for "ㅇㅇ(Hue)" was released alongside the debut mini-album The girl next door. The group started their promotions for their album through a showcase on October 10, then made their broadcast debut on October 13 through "Music Bank."