Group Members

Semi (cignature) Profile, Bio, & Facts


Semi (세미) is a South Korean singer and a member of the K-pop girl group cignature under J9 Entertainment.

Semi (cignature) Profile

Stage NameSemi (세미)
Birth NameGoo Se Mi (구세미)
OccupationSinger, actress
BirthdayApril 10, 2002
Active Years2020–present
Age22 (in 2024)
Zodiac SignAries
Height166 cm (5’5″)
Weight46 kg (101 lbs)
Blood TypeA

Semi (cignature) Facts:

Early Life

– She was born in Bupyeong-dong, Bupyeong-gu, Incheon Metropolitan City, South Korea.
– She was in Bupyeongseo Elementary School.
– She went to Buwon Girls’ Middle School.

Personal Life

– Her Chinese zodiac sign is Horse.
– She has been called Kitty by her fans. (KOREA Times)
– She thinks of herself as a “cellphone” if she had to pick a really indispensable in today’s society. (Panorama)
– Her favorite track is “Sirius” by cignature.
– For Semi, the emotional ‘Little Me’ is her favorite from the “Us In The Summer” album. (CLASH)
– The cat is her representative animal.
– She has trouble remembering her conception dream.
– She prefers her right side profile.
– In her bag, she always carries wet wipes, lip balm, and a water bottle.
– She tries her best to get high scores whilst playing games.
– Bring her closest friends and family, some snacks, and a first aid bag if she were going to be on her ideal island.
– She sets her alarm so other members don’t need to wake her up.
– She’d save her money more if she ever won a lottery.
– Some of her nicknames are Upon Death, 932, Semsik, kitten, Semcat, and Utan.
– Her opening line “Hello, this is Se-mi, Signature’s cute little cat!”.
– She’s an only child.
– Her eyes are her focal point.


– Semi is the Main Vocalist and Dancer of cignature.
– She was second in line to be revealed on November 11th, 2019.
– She was formerly under JYP Entertainment as a trainee.

Likes & Dislikes

– Her favorite perfume is Ferrari Light Essence.
– Autumn is her favorite season.
– She enjoys wearing black clothes.
– She prefers comfortable clothing styles.
– She loves bright lip colors and moisturizing lip balms.
– She likes going to escape room cafes.
– Her favorite movie genre is action movies.

Food Preferences

– She loves meat.
– She enjoys ice creams.
– She likes hamburgers.
– She doesn’t like shiitake mushrooms.

Celebrity Friends

– She is close friends with KISS OF LIFE’s Natty, ITZY’s Chaeryoung, IZ*ONE’s Chaeyeon and TWICE members.

Streaming Platform Links
Genie | Bugs | Melon

Semi Photos

Note: How did you get to know Goo Se Mi? Mention your story in the comments section and also share more facts with us if you know!



Kim Hyrin

Hi! It's Hyrinnie here, your know-it-all author ;). please don't be shy to point out any mistakes if you see, and contact me if you know further more facts! <3 xoxo.