WANNA.B (워너비) is a five-member girl group under Zenith Media Contents. A pre-debut was made on November 17, 2014 with the single "My Type". On July 20, 2015, the girl group officially debuted with "Attention".
Source: Kpop Wikia
014-15: Debut & comeback with Hands Up
WANNA.B was created by Zenith Media Contents in 2014. The group's first release was on November 17, 2014 with the single My Type. After multiple girls left and joined the group, they officially debuted with Attention on July 20, 2015. At the time of debut, the 6 member group consisted of Jiwoo, Sejin, Seoyoon, Siyoung, Ami & Eunsom. On November 11, 2015 the group made their first comeback with their 2nd single titled Hands Up.
2016-18: Line-up changes & comeback with Why
On April 6, 2016, Zenith Media Contents announced that member Seoyoon would be leaving the group due to back pain. In addition, the label added 2 new members, these members are Roeun & Lina. Lina was revealed to be the older sister of Girl's Day member Minah. The new line-up made their comeback on June 26, 2016, with their 3rd digital single "Why".
Source: Kpop Wikia
In November 2016, members Jiwoo & Siyoung decided to leave the group.
On May 6, 2017, Lina appeared on the South Korean show I Can See Your Voice 4 where she performed "Something" by Girl's Day. Lina's sister, Minah from Girl's Day, made a guest appearance to perform the song with her. On August 27, 2017, Lina and her sister Minah appeared on Happy Together.
- Wikipedia