Group Members

Sieun (STAYC) Profile, Bio, and Facts

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Sieun (시은) is a South Korean K-pop singer, actress and a member of the girl group STAYC under High Up Entertainment.

Sieun Profile

Stage Name: Sieun (시은)
Birth Name: Park Si Eun (박시은)
Occupation: Singer
Birthday: August 1, 2001
Active Years: 2022–present
Age 22 (in Jun 2024)
Zodiac Sign: Leo
Height: 159 cm (5’3″)
Weight: 44 kg (97 lbs)
Nationality: Korean
Blood Type: A

More Profiles: FIFTY FIFTY, Hi-Fi Un!corn, WEUS

Sieun Facts

Early Life

– Sieun was born in Yongsan-gu, Seoul, South Korea.
– She went SangMyung Elementary School and SangMyung Middle School.
– She studied in the acting department and graduated from Goyang High School.
– She took a leave of absence from Chung-Ang University (Faculty of Performance and Visual Creation, Theater Major / Leave of Absence).

Personal Life

– Sieun has a younger sister named Park Siwoo, born in 2004.
– She has a pet Black Poodle dog named Pomi.
– Apink is her favorite girl group.
– She is afraid of snakes, and just looking at a picture of them scares her. She is also afraid of hamsters despite being nicknamed “Hamster.”
– Her representative object in the group is Rock.
– Her father is Park Namjung who is a South Korean veteran singer.
– If she could be born again, she would like to be born in Finland because it ranks first in the happiness index.
– She would love to collaborate with Selena Gomez or Ariana Grande.
– If she wasn’t an idol, she believes she would be a pianist or ballerina as she has been learning both since she was 5 years old.
– G-Dragon and Apink are among her favorite artists.
– She is friends with Hwang Jia from the group YOURS.
– She is roommates with Isa, Seeun, and J.
– She wants to try a concept that is energetic, bright, and charismatic, similar to Girls’ Generation’s Holiday Night or (G)I-DLE‘s Lion.
– She can handle one bottle of alcohol regardless of the type.
– Sieun is known for her resemblance to Suzy and Park Bo-young.
– She is nicknamed “Ssini” and “SingSingi”.
– She describes her skin as soft as a mochi.
– She choose Seeun as the most ideal member of the group.
– Her ideal type is Lee Minho.
– Her motto is “Let’s love ourselves, let’s see and give, let’s cherish the present.”
– Her English name is Rachel.
– IU is her role model.
– Her MBTI personality type is ENFJ.


– Sieun is the main vocalist in the group “STAYC”.
– She made her debut as an actress in February 2014 under FE Entertainment.
– She became a trainee under JYP Entertainment on January 18, 2017, but left in 2019 to join HighUp Entertainment.
– In 2019, she appeared on “The King of Masked Singer” as the character “Chaos.”
– She worked as the MC for “The 11th Gaon Chart Music Awards” and “KCON 2022 Premiere in Chicago” in 2022.
– Sieun has appeared in many dramas including “The Good Wife” (2016), “The Crowned Clown” (2019), “Criminal Minds” (2017) and “Signal”.
– In 2014, she appeared as a guest on “Happy Together” alongside her father, Park Nam-Jung.
– She appeared as a special DJ in the program “Jun Hyo-sung’s dream radio” in 2021.
– She was featured in HIM magazine in 2019.
– She had training for a period of 4 years.

Likes & Dislikes

– Her favorite color is yellow.
– She loves the summer season.
– Sieun likes watching the movies Titanic, Inception, Catch Me If You Can, and her favorite drama is My Mister.
– Her favorite words are ‘heart’ and ‘grace’.
– She fell in love with the phrase ‘Yoroshiku Onegaishimasu’ from Japanese anime when she was young and used it all day.
– Her favorite ride is Atlantis in Lotte World.
– Her favorite item is her Bluetooth earphones.

Food Preferences

– Sieun prefers ice cream-filled taiyaki.
– Her favorite Baskin-Robbins ice cream flavors are Cookies and Cream, Yogurt, My Mom is an Alien, and Almond Bonbon. She also likes mint chocolate.
– Her favorite chicken dishes are Jamaica, 3 kinds of yellow whole chicken, and Cheogatjip Supreme Chicken.
– She doesn’t like soda.


– Sieun is the best English speaker in the group and tends to take charge of official occasions such as English interviews.
– She is the most flexible member and has succeeded in doing yoga moves that none of the other members have accomplished.
– Sieun is skilled in playing the piano.
– She is a rock-paper-scissors master.

Personality & Habits

– She often forgets something and is teased by the members
– Sieun is a heavy sleeper and sometimes doesn’t even hear her alarm going off.
– She has a perfectionist streak and strives for perfection in everything she does.
– Contrary to her appearance, she enjoys fear and thrill. She is the most fearless among the members and enjoys amusement park rides.


– In 2018, Sieun received the Best Youth Actor & Actress award at the SBS Drama Awards for her performance in “Still 17.”

Streaming Platform Links

Genie | Bugs | Melon

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

STAYC Sieun | ‘Break Free’ Cover:

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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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