Somi was born in Canada to a Dutch-Canadian father and a Korean mother. She has triple citizenship: South Korean, Dutch and Canadian. She also has a sister named Evelyn who is eight years younger than her. Her family moved to South Korea when Somi was one year old.
2016–2017: Produce 101 and I.O.I
Later in January 2016, she represented her company as a contestant in the reality survival show Produce 101, and finished the competition in first place, thus debuting as a member and the center of the group I.O.I.
2017–present: Unnies, Girls Next Door, solo activities
Somi then went onto being cast in the reality-drama show, Idol Drama Operation Team in May 2017, as a representative of I.O.I. She played the role of high school student named Bo-ram, and then later became part of a special girl group named Girls Next Door formed by her fellow cast members in July, 2017.
Somi is currently pursuing solo activities while featuring with other artists.
- "Flower, Wind and You" (with Heehyun (DIA), Yoojung, Chungha of I.O.I) (2016)
- "You, Who?" (with Eric Nam) (2017)
- "November to February (with Jun. K) (2017)
Music video appearances
- CJ Alaska Salmon (2016)
- Elite Uniforms (2017)
- Sudden Attack (2017)
- Special Soldier (2017)
- Jambangee jeans (2017)
- American Tourister (2017)
- FANTA (2017-2018)
- Reebok Classic (2017-2018)
- Skoolooks (2017-2018)
- GIVERNY (2018)
- Somi, like her father, is a taekwondo black belt holder. She holds a third-degree black belt, but could not gain the fourth-degree black belt due to her being too young.
- Somi was bullied as a child for being of mixed descent
- Somi can speak Korean and English fluently.
- She has trained for 1 year and 8 months, including SIXTEEN. If including Produce 101, then she has trained for 2 years.
- During the production of Produce 101, Somi has received the nickname "Vitamin" due to her beagle like personality
- She has a younger sister named Evelyn.