Group Members

Theo (P1Harmony) Profile, Bio, and Facts

Theo P1Harmony

Theo (테오) is a South Korean Kpop singer-songwriter and a member of the boy group “P1Harmony” under FNC Entertainment.

Theo (P1Harmony) Profile

Stage Name: Theo (테오)
Birth Name: Choi Taeyang (최태양)
Occupation: Singer, lyricist
Birthday: July 1, 2001
Active Years: 2020–present
Age 23 (in Jul 2024)
Zodiac Sign: Cancer
Height: 181 cm (5’11″)
Weight: na
Nationality: Korean
Blood Type: A

More Profiles: GLX, MAVE:, ICHILLIN’

Theo (P1Harmony) Facts

Early Life

– He was born in Daejeon, South Korea.
– He graduated from Hanbat High School in Daejeon.
– Theo attended Yellow Windmill Kindergarten, Daejeon Bongsan Elementary School, and Karma Middle School.
– He graduated from Hanbat High School.

Personal Life

– He had never owned a pet before.
– Theo’s mother is a hairstylist.
– He underwent appendix surgery in the fifth grade of elementary school, resulting in the removal of his appendix.
– The shape of his eyes is his favorite feature on his face.
– He finds the song “Reset” from Disharmony: Break Out the most meaningful because of his great experience while recording it.
– At his first birthday ceremony (doljabi), he grabbed a microphone.
– He records clips of Keeho singing so he can show them to others or watch them himself in the future.
– His bucket list artists to collaborate with are BIGBANG, Taeyang, G.Soul, and Dean.
– He doesn’t sweat much, if at all.
– He always cries while watching the Korean movie “Miracle in Cell No. 7”.
– Theo advises his pre-debut self to think 100 times before acting on something. (Billboard Interview)
– His hobbies include fishing, volleyball, watching baseball, and growing plants.
– He would like to see G-Dragon and Huh Gak in concert.
– Despite his tall body, he has relatively small hands and feet.
– During his trainee days, he commuted from Daejeon to Seoul daily.
– He has small hands and feet.
– He has cold hands and feet and always keeps them warm by wearing socks. He even wears sleep socks while sleeping.
– He is not interested in cooking.
– He used to brag to his friends about Keeho’s singing because he thinks Keeho is really good at it.
– The first music CD Theo bought was from BIGBANG, called “MADE.”
– If he could, he would like to have Soul’s dance skills.
– His top item on his professional bucket list is to have their own world tour.
– He said his hometown allowed him to live without pressure or concerns.
– He is known for actively communicating with fans.
– His life motto is to be a person deserving of dignity.
– According to Intak, he has many friends.
– Theo is considered as one of the visual members of P1Harmony.
– During the first album promotion, he got his first piercings.
– His karaoke go-to song is BIGBANG’s “BANG BANG BANG.” (Billboard Interview)
– He shares a room with Soul, and Jongseob.
– He and Jiung have been friends for a long time.
– His stage name”Theo” means “a gift from God.” He is the only Korean member to use a stage name.
– During his audition, he performed ‘Beautiful’ by Crush.
– His digestive system is weak.
– He wants fans to gain confidence through their music, which is one of their strongest messages.
– He said starring in the film P1H: The Beginning of a New World allowed him to gain confidence and pride in being the first to debut with a full-length movie.
– The first concert he saw was BIGBANG’s “MADE” Concert.
– Theo is the second tallest member in P1Harmony.
– The pandemic affected his creative process positively by allowing him to focus more on his craft due to not being able to go out.
– His Korean birth name, ‘Taeyang,’ means ‘sun.’
– He went to the same dance and vocal academy as Geonu from JUST B and Seokhwa from WEI.


– He was the second member to be revealed in P1Harmony.
– Theo is the vocalist in the group “P1Harmony”.
– He participated in writing many P1Harmony’s songs “Intro; Breakthrough (틀)”, “That’s It (이거지)” and ” Breakthrough (틀) (Full Version)” along with Keeho.
– Prior to joining FNC Entertainment, Theo was a trainee at SM Entertainment.
– He became a trainee at FNC in May 2019 and debuted after one year and five months of training.
– Among the P1Harmony members, Theo had the shortest training period.

Likes & Dislikes

– He liked physical education (PE) in school.
– He enjoys fishing in the Han River.
– Baseball is his favorite sport to watch
– He likes the quote, “Let’s stop being so self-conscious and enjoy life”.
– Theo prefers wearing slippers even in winter.
– Instead of perfumes, he uses body lotion.
– Wearing accessories bothers him, so he tends to avoid them.
– Dean is his favorite musician.
– ‘On Your Wedding Day’ is his favorite movie.
– He likes puppies more than cats.
– He used to have a camera phobia.

Food Preferences

– His favorite foods include chicken hamburger, fried chicken, and pizza.
– He has a tendency to obsessively eat one particular food when he falls in love with it. For example, he ate CU’s jjamppong ramen every day for four months without missing a single day.
– His favorite drink at Gong Cha is Chocolate Milk Tea with Tapioca Pearl.
– He has a small mouth and cannot eat large quantities of food.
– He doesn’t enjoy pork cutlets and Americano.
– Carbonated beverages are his favorite.
– He doesn’t like eating spicy foods.


– He has various nicknames, including Theo, Teo Choi, Bald Eagle, Theoori, Tennyang, Theo, and Tengja.
– Tuna is his favorite meat, and Jongseob saved Theo’s KakaoTalk name as “Yukhoe Tuna.”


– Among P1Harmony members, Theo is the best in sports and is the strongest.
– He is not good at cooking
– He is skilled in high jump, winking, and volleyball.
– Singing is his specialty.

Personality & Habits

– He has a habit of sometimes singing in his sleep.
– While Theo generally has a shy personality, his behavior can change depending on who he is interacting with.
– He never cried in front of others until he turned 20 when Keeho, Jiung, and Soul witnessed him crying over a YouTube video.
– His MBTI personality type is ENFP, the same as Keeho and Intak.
– Theo dislikes showing his bare skin and avoids wearing short-sleeved T-shirts even in the summer.
– He enjoys talking to his friends on the phone and can spend hours doing so.

Streaming Platform Links

Genie | Bugs | Melon

NOTE: If you know more facts about Theo (P1Harmony) Facts, feel free to submit them in the comments section! All submissions will be greatly appreciated!

P1Harmony THEO(테오) ‘JUMP’


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! ^^