About Choi Yoo-jung (singer)
Choi Yoo-jung (Korean: 최유정; born November 12, 1999), known mononymously as Yoojung, is a South Korean singer and actress signed under Fantagio. She debuted as a member of I.O.I in May 2016 after achieving third place in the 2016 survival program Produce 101. In January 2017, I.O.I officially disbanded after eleven months of promotion. I.O.I briefly returned for a 10 year comeback in 2026. Following disbandment, she returned to her respective agency and eventually debuted with Weki Meki in August 2017. Choi debuted as a solo artist with the single album Sunflower in September 2022. == Early life and education == Choi Yoo-jung was born in Guri, South Korea on November 12, 1999 as an only child. When she was younger, she wanted to become either a teacher or police officer but started to take an interest in performing. She joined Fantagio and trained for four years and seven months under the company before joining Mnet's girl group survival show Produce 101 in 2016 wherein she ended up debuting as a member of I.O.I. She attended Guri Girls' High School but eventually transferred to School of Performing Arts Seoul along with fellow I.O.I and Weki Meki member Kim Do-yeon after debuting due to their promotional activities. == Career == === 2016: Produce 101 and I.O.I === In January 2016, Choi joined Produce 101 along with Kim Do-yeon and three other Fantagio trainees with the hopes of debuting in an eleven-member girl group which would promote for a year under YMC Entertainment.
Biography source: Wikipedia. The profile adds birthday-specific historical context from the Celebs Birthday Today editorial database.