|Stage Name||Birth Name||Position||Birthday||Age||Height||Star Sign||C Y Sort descending||BT|
|Elly 엘리||Jung Haerim||Sub-vocal||19||161 cm or 5'3½"||Cancer||Tiger||B|
|Rina 리나||Kang Soeun||Vocal||16||162 cm or 5'4"||Libra||Snake||O|
|Lucy 루시||Noh Hyojung||Dancer, Rapper, Maknae||15||168 cm or 5'6"||Virgo||Horse||B|
|Lua 루아||Kim Sookyung||Dancer||17||166 cm or 5'5½"||Libra||Dragon||A|
|Suyeon 수연||Ji Suyeon||Leader, Vocal||21||164 cm or 5'4½"||Taurus||Ox||O|
|Sei 세이||Lee Seojeong||Vocal||18||163 cm or 5'4"||Capricorn||Hare||B|
|Doyeon 도연||Kim Doyeon||Dancer, Visual||18||170 cm or 5'7"||Sagittarius||Hare||O|
|Yoojung 유정||Choi Yoojung||Vocal, Dancer, Rapper||18||159 cm or 5'2½"||Scorpio||Hare||O|
Weki Meki 위키미키 is a female idol group formed by Fantagio in 2017. The group consists of eight members: Ji Suyeon, Elly, Choi Yoojung, Kim Doyeon, Sei, Lua, Rina, and Lucy.
The members started out as trainees under Fantagio i-Teen, a rookie talent development program under Fantagio Entertainment, and were known as i-Teen Girls.
In 2015, i-Teen girls Doyeon, Yoojung, Lua, Lucy, and Elly (as well as former trainees Chu Yejin and Lee Soomin) had numerous cameos in label mate Astro's pre-debut online web drama "To Be Continued."
Elly (as Jung Haerim), Yoojung, Doyeon, and Sei (as Lee Seojeong, then under LOUDers Entertainment) competed in the Mnet survival television program "Produce 101," which aired from January 22 to April 1, 2016. Yoojung and Doyeon were ranked in the final top 11 contestants and debuted in the girl group project I.O.I.
In March 2017, Weki Meki (then i-Teen Girls) opened a Naver V Live channel where 8 trainees introduced themselves to be a part of the next Fantagio girl group. These trainees were Elly, Yoojung, Doyeon, Sei, Lua, Rina, Lucy, and former trainee Yejin. On June 4 on V Live, Yoojung confirmed her place in the final line-up of Weki Meki as well as Sei, Lua, Elly. On June 5 on V Live, Doyeon confirmed her place in the final line-up as well as Lucy, Rina, and unseen trainee Ji Suyeon.
On July 6, Fantagio revealed that their new girl group would be called Weki Meki.
Weki Meki released their debut extended play, WEME, on August 8, 2017. The EP contains six tracks with the lead single "I Don't Like Your Girlfriend." The album also features lyrics written by Yoojung. A month later, a limited "B Version" of their debut EP was physically released. In November, according to Gaon Music Chart, the EP sold over 47,000 physical copies since its release, making it the highest-selling album by a female idol group that debuted in 2017.