His bad habit is that he bites his nails. According to Hyunsik, Changsub is the last to wake up but the first one ready to leave the dorm. In 2009 he became vice president of the Red Cross Youth in Gyeonggi Province. In 2008 he won a Daesang at the 16th Suwon Music Festival. He released his first Korean solo album called “Mark” in December of 2018. – He was the first member to debut his own solo album called “bpm 82.5” (Japanese). – He sang an OST for the drama “A Poem A Day” called “Falling”. He has helped write lyrics for several BTOB songs including: “Last Day”, “Killing Me” and “Melody”. Changsub held his first solo concert called “Space” on January 4th, 5th, and 6th of 2019. Wifi” on an episode of King of the Masked Singer in 2015. – He participated in the Mongolia edition of “Law Of The Jungle”. – He starred in several musicals: “Boys over Flower”, “Napoleon”, “Edgar Allen Poe”, “Dog Fight”, and “The Iron Mask”. – Changsub and Sungjae are the members of the group with a ‘Tom & Jerry’ relationship. –He acted alongside his group mates Hyunsik, Sungjae, and Minhyuk and former Highlight member Junhyung, in the drama “Monstar”. His role models are Rain and Michael Jackson.
– Changsub’s mother will not let him get any more tattoos. He initially didn’t want to leave his family home to debut, but his mother convinced him. He is the only BTOB member with type O blood. He is also good at rapping and beat boxing. Changsub is the member who is closest to their family. His hobbies include listening to music and drinking coffee. – Changsub really enjoys brushing his teeth. – He is the member who listens to Eunkwang the most. While in the military, he recorded a theme song for ROK Army, alongside Onew and Key of SHINee, Xiumin of EXO, Sunggyu of Infinite, Jo Kwon and Jinwoon of 2AM, Jisungformally of Wanna One, and actors Kim Min-suk and Lee Jae-kyoon. – He attended Howon University, where he studied Practical Music. He gave a ₩10 million scholarship to his former high school. He attended Samil Commercial High School. He is part of BTOB Blue, a vocal subunit of BTOB. – Changsub will eat all foods, except for pudding. – He struggles with acrophobia (fear of heights) – Changsub used to be a skateboard athlete. – Kimchi fried rice is a meal he is good at cooking. – Changsub has a hard time resisting sleep. – He can play several instruments such as: drums, guitar, and bass. Changsub enlisted in the military in January of 2019, and will be discharged in August of 2020. – He has 1 sibling, a younger sister named Jungeun.
– His hometown is Suwon, Gyeonggi-do, South Korea.