Ha Sung Woon walks in blue for his first MV teaser for title track "Blue."

The former Wanna One member is gearing up to drop his first mini-album 'BXXX' and is seen moodily developing pictures in his blue themed MV. The song sounds like it's going to be an emotional dance-pop song that hits you in the feels and also gets you dancing! 

Check out the teaser above.