1. Yoon Doo-joon, known mononymously as Doojoon or Dujun, is a South Korean singer and actor.

1. Yoon Doo-joon, known mononymously as Doojoon or Dujun, is a South Korean singer and actor.
Yoon Doo-joon is the leader of the South Korean boy group Highlight.
Yoon Doo-joon was born in Goyang, South Korea on July 4,1989.
Yoon Doo-joon then moved to Cube Entertainment and was featured as a rapper in AJ's "Wipe the Tears".
Yoon Doo-joon graduated from Kyung Hee Cyber University in post-modern musicology.
Yoon Doo-joon attended Dongshin University as a student majoring in Broadcast Entertainment, under a full scholarship, along with three other members of Beast.
Yoon Doo-joon enlisted for his mandatory military service as ROK Army on August 24,2018, and was discharged on April 10,2020.
Yoon Doo-joon was then chosen to model on an advertisement for premium jeans brand Buckaroo along with Shin Se-kyung.
Yoon Doo-joon debuted as an actor when he was cast in MBC's daily sitcom More Charming By The Day and All My Love.
Yoon Doo-joon reprised his role in the second season, Let's Eat 2 which aired in 2015.
In 2018, Yoon Doo-joon starred in the romance drama Radio Romance.
On July 27,2020, Yoon Doo-joon released his first solo mini album, Daybreak.