1998–2015: Career beginnings In 1998, Jun began his acting career at the age of two when he was cast in his first commercial. He has appeared in numerous television series, including
Dragon Laws () at the age of five. In 2007, he starred alongside
Eason Chan in the film '''', for which he won the Silver Award for "New Performer of the Year" at the 2007
Hong Kong Film Directors' Guild Awards. He was also nominated for the
Best New Performer Award of the
27th Hong Kong Film Awards in 2008 for the same film. In 2010, he played the young
Ip Man in
The Legend Is Born: Ip Man. In 2014, he was cast in the Chinese web drama
Intouchable.
2015–present: Debut with Seventeen In October 2012, Jun moved to South Korea to undergo training under
Pledis Entertainment. From 2013 to 2015, he appeared on
Seventeen TV and
Seventeen Project: Big Debut Plan as a trainee alongside the future members of his band. His training period involved rigorous practice and preparation, in which he developed his skills in dancing and singing. He debuted as a member of Seventeen on 26 May 2015 under the stage name Jun. The group's first EP
17 Carat was released three days later, on 29 May 2015. In 2018, Jun and group member
The8 participated in the Chinese music reality show
Chao Yin Zhan Ji (). Jun won the first solo stage competition on the show with his performance of "Wo Ming Bai" (), a Chinese cover of
Seventeen's "Thanks", for which he wrote the lyrics. From October to December 2018, he co-hosted the Chinese music ranking show called
Yo! Bang ().
2018–present: Solo career and other ventures Jun released his first solo song and special single album
Can You Sit By My Side (), which he co-wrote lyrics for, on 14 December 2018. In July 2019, he filmed a music video for the
NetEase mobile game
A Dream of Jianghu (). In 2020, he participated in the soundtrack of
The King: Eternal Monarch with the song "Dream" in Chinese. On 5 February 2021, Jun released the single "Crow" (); it was later repackaged onto his second single album
Silent Boarding Gate () released on 14 February. His single "Crow" entered the
Billboard World Digital Song Sales chart at number 14 after less than one week of its release, marking Jun's debut as a solo artist on the
Billboard charts. On 23 September 2022, Jun released his third digital single "Limbo" with two versions in Korean and Chinese. In China, he sold 29,000 copies of the digital album containing both tracks on
QQ Music within the first week of release. The Korean version peaked at 26 on the Bugs Real-Time chart and became his first song to chart on the platform. On Melon, the track entered the daily chart for 23 September at 723, an improvement from "Crow" which had ranked at 948. On the Melon latest 24h (1 week) chart, "Limbo" (Korean Ver.) peaked at 14. Jun made an acting comeback as the male lead in the 2023 drama,
Exclusive Fairytale (). On 4 July 2023, Jun released his fourth digital single "Psycho". On 8 July, he attended the
Tencent Music Entertainment Awards and won the "New Singer-Songwriter of the Year" award. The next day, he performed "Limbo" and "Psycho" as a solo artist at the TMEA Music Festival, and also performed as a member of Seventeen. On 12 August 2024, it was announced that Jun would be taking a break from group activities in South Korea in favor of acting activities in China, and would therefore be absent from the group's scheduled performances at
Lollapalooza Berlin in early September, music show performances for
Spill the Feels, and the
Right Here World Tour. In 2025, Jun co-starred with
Jackie Chan and
Tony Leung Ka-fai in the film ''
The Shadow's Edge'', portraying Hu Feng, a member of the heist crew. ==Ambassadorships==