JOO will be returning to the music industry after a two-year hiatus with her new mini-album, "Heart-Made." JOO's official homepage launched their comeback preparations on December 29th, and revealed teaser images for her title track, "Bad Man". The pictures do well in showing the singer's mature transformation (compared to her youthful debut days), and deliver a strong contrast between the soft sunlight and the cold piece in her hand. A framed picture of 2PM's Chansung is also seen sitting on a table, hinting at a possible collaboration. JOO will be releasing "Heart-Made" this coming January, which features a track composed by E-TRIBE. Source: Star News via Nate