1. Kim Jeong-hoon, known by his stage name John Hoon, is a South Korean singer and actor.

1. Kim Jeong-hoon, known by his stage name John Hoon, is a South Korean singer and actor.
Kim Jeong-hoon initially rose to fame as a member of South Korean duo UN debuting with the single Voice Mail in 2000.
Kim Jeong-hoon debuted as a member of Korean duo UN in 2000, an acronym for "United N-generation".
Kim Jeong-hoon had stated that the conditions of the Korean music industry prevented him from pursuing music he truly wanted to do.
Kim Jeong-hoon did not realize that he would become an actor and singer.
However Kim Jeong-hoon made his major break through when he starred in the hit MBC drama Princess Hours alongside Yoon Eun-hye and Ju Ji-hoon.
Kim Jeong-hoon played the role of Yul, a caring and gentle 19-year-old who is second in line to become the crown prince and has returned to Korea to reclaim the two things that were snatched from him after his father's death: the title of crown prince and the crown princess who was initially supposed to marry him.
Kim Jeong-hoon had said his final dream is to become a renowned movie director.
Kim Jeong-hoon has appeared in a number of dramas and shows upon his return.
In 2016, Kim Jeong-hoon was cast in the Chinese drama God of War, Zhao Yun along with Girls' Generation's YoonA.
Kim Jeong-hoon portrayed Gao Ze, a love interest of YoonA's character in a love triangle.
Kim Jeong-hoon attended Seoul National University and took up Dentistry but decided to drop out to focus on his acting career.