Clearly Doo Joon has a heart shaped face. He has a wide forehead but a relatively narrow chin. But in contrast, Doo Joon likes to show his facial shape, and gets short haircuts with completely no fringes. In a sense he looks a lot like the other popular Korean singer, T.O.P..
In a way Doo Joon brings out the bright and cool look through his short mohawk style. Neat hmm?
Early on Doo Joon had fringes which acted like a cap for his forehead, while keeping his short haircut.
Doo Joon's hairstyle covers one of the hottest hair trends in Korea to date.