Singer Kim Greem has made a surprise comeback with a new single.

Today, her new single, Be Mine, was released on various music sites online.

Her song, “Be Mine” features many acoustic instruments that accompany her soothing voice, according to reports.

“Be Mine” was produced by Ahn Young Min, who also produced SISTAR’s Hyorin and Girls’ Generation’s Taeyeon’s solo songs as well.

On the other hand, Kim Greem first appeared as a contestant on Mnet’s “Superstar K2” and later released her first single in 2011.