Soyu continues to drop teasers for her upcoming mini-album.

On April 25th, Soyu unveiled a new teaser video for "If I Knew", which is the 4th track on her 1st solo mini-album 'Day & Night.' As previously reported, the upcoming album contains the songs "Business" featuring BE'O, "Mind" featuring Jukjae, "Some 2" featuring Yonghwa, "If I Knew", and "Tree" featuring DAVII. 

Meanwhile, Soyu's 1st solo mini-album 'Day & Night' is set for release on April 27. Watch the teaser above and let us know what you think in the comments below.