Member of the K-Pop boy band Seventeen who became a trainee of Pledis in 2012. He earned the nickname of Mr. Headphones on season one of Seventeen TV. His stage name and middle name is Vernon.
He was born in New York and moved to Korea when he was five years old.
He and Seventeen released EPs called 17 Carat and Boys Be in 2015.
He has a younger sister named Sofia (Choi Hangyeol) who was born in 2004. Both of his parents worked as teachers. His mother is American and his father is Korean.
He performs alongside Joshua Hong in Seventeen.