H.U.B is a five-member girl group under New Planet Entertainment. Originally four members, they released the pre-release single "Our Time Together" on November 24, 2016 before officially debuting on February 9, 2017 with the single "Girl Gang". Their name stands for 'Hope U Bounce'.
On May 31, 2017, Produce 101 contestant Hyosun was added to the group.
- Rui (루이) - rapper, visual (2016–present)
- Hyosun (효선) - rapper, dancer (2017–present)
- Yehin (예인) (2018–present)
- Seoryeong (서령) (2018–present)
- Chehee (체희) (2018–present)
- Gracie (그레이시) - leader, main vocalist (2016–2018)
- Yuem (유음) - lead vocalist, rapper, composer (2016–2018)
- Keina (케이나) - main rapper, maknae (2016–2018)
- "Our Time Together" (2016)
- "Girl Gang" (2017)
- "Ooh Ooh" (2017)
- "When A Blossom Day Of Cherry Blossom" (2018)