Group Members Trainees

Youngseo (ex. ILLIT) Profile, Bio, & Facts

Youngseo ILLIT

Youngseo (영서) is a South Korean trainee. She is a former predebut member of the K-pop girl group ILLIT. She was a contestant on the survival show “R U NEXT?”.

Youngseo (ex. ILLIT) Profile

Stage NameYoungseo (영서)
Birth NameLee Youngseo (이영서)
BirthdayNovember 13, 2005
Active Years2023–present
Age18 (in 2024)
Zodiac SignScorpio
Blood TypeA

Youngseo (ex. ILLIT) Facts:

– Youngseo was born in Seoul, South Korea.
– She went to Gyeonggi Elementary School and Yonggang Middle School.
– She is currently enrolled at Gaepo High School.
– She likes cherries and she decorates her phone and logos with cherry-themed designs.
– Her elementary school was Kyonggi Elementary School.
– She is close with former R U Next contestants Jihyun and Jeemin .
– Pink is her favorite color.
– She was discovered and cast in front of her elementary school.
– She used to have a YouTube channel.
– Her training period extended from 4 to 5 years.
– She often touches her hair out of habit.
– According to herself, she is slow in nearly everything except for eating.
– Billie Eilish is her role model.
– She gets energetic when she eats. (‘I’LL LIKE IT!’ EP.1)
– She practised ballet in the past.
– Her dislikes include paprika, bell peppers, onions, pickles, garlic, and shrimp.
– Youngseo trained with NewJeans, for one year under ADOR.
– She also formerly trained under SM Entertainment.
– She has a habit of paying close attention to detail, especially for important matters.
– She is friends with Kim Eunkyul from Idol School and Sakurai Miu.
– She was previously a trainee at Source Music.
– Fans like to call her “Meow-seo.”
– Among her hobbies, she enjoys eating and creating beaded rings.
– Her favourite animal is the cat.
– She left ILLIT months before their debut and terminated her contract with Belift Lab on January 5, 2024.

NOTE:  If you know more facts about Youngseo, feel free to submit them in the comments section! All submissions will be greatly appreciated!

Final Lineup (Youngseo):


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Lilian Chen

Yo! I'm Lilian, an Ahgase and a curious wordsmith on a never-ending quest for knowledge. Don't hesitate to spot any slip-ups in my work and feel free to reach out with additional facts & insights! ^^

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