I. Introduction
1NB (원앤비) was a girl group under Trivus Entertainment. As a three-member group, they released the pre-debut single "Stalker" on February 6, 2017 before officially debuting as a five-member group on November 29, 2017 with the single "Where U At".
II. Career
The group originally consisted of members Leeda, Shinhye, and Jungyu. The trio released and promoted the pre-debut single "Stalker" on February 6, 2017. The single's music video gained one million views in eight days and received high praise from Japanese horror comic artist Junji Ito.
Soon after the release, Jungyu left due to personal reasons. On April 4, 2017, it was announced that Jayeon had joined 1NB. This was followed with Hajung joining on April 16, and her younger twin sister, Sojung, joining the group on May 4. On August 23, 2017, it was confirmed that Leeda and Hajung would appear in KBS's rebooting show The Unit.
1NB eventually made their official debut on November 29, 2017 with the single "Where U At".
April 27, 2018, the group announced that they had disbanded.
Their name stands for "1 New Best".
III. Members
| Member | Profile |
| Stage Name: Shinhye (신혜) Birth Name: Shin Hye-lim (신혜림) Position: Leader, Main Dancer, Lead Vocalist Birthday: July 24, 1994 Zodiac Sign: Leo Height: 168 cm (5’6″) Weight: 47 kg (104 lbs) |
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| Stage Name: Jayeon (자연) Birth Name: Kim Ja-yeon (김자연) Position: Main Vocalist Birthday: March 7, 1991 Zodiac Sign: Pisces Height: 164 cm (5’5″) Weight: 47 kg (104 lbs) |
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| Stage Name: Leeda (이다) Birth Name: Lee Da-hee (이다희) Position: Main Dancer, Lead Vocalist Birthday: May 11, 1994 Zodiac Sign: Taurus Height: 168 cm (5’6″) Weight: 47 kg (104 lbs) |
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| Stage Name: Hajung (하정) Birth Name: Kim Ha-jung (김하정) Position: Vocalist, Visual Birthday: August 24, 1994 Zodiac Sign: Virgo |
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| Stage Name: Sojung (소정) Birth Name: Kim So-jung (김소정) Position: Lead Dancer, Vocalist, Visual, Maknae Birthday: August 24, 1994 Zodiac Sign: Virgo |
IV. Discography
Digital Single(s)
| Cover | Title | Date of Release |
| "Stalker" | 2017 | |
| "A Gloomy Spring" | 2017 | |
| "Where U At" | 2017 | |
| "Once Again, Winter" | 2017 | |
| "The Beautiful Moon" | 2018 | |
| "What Happens When Spring Comes | 2018 |
V. Trivia
- Originally, their agency’s producer told them their name would be One-Na-Bl, an acronym for the manga series' One Piece, Naruto, and Bleach. They were also told their stage names would be Bibi, Nami, and Robin (characters from One Piece). The girls objected and they ended up with 1NB instead.
- Jayeon was a former contestant on Produce 101.
- Jungyu was a former member of LAYSHA under the name Yoobin. After training with 1NB, she debuted as a member of CAMILA.
