Singer Mina's younger sister Nikita (Shim Sung Mi, 33) has just revealed to allkpop that she'll be making her own debut as a singer with her digital single, "Deep Kiss"! Nikita guested on her older sister's album, "Toy Boy", in July and earned many headlines herself for her beautiful looks.  Her title track "Deep Kiss" includes powerful hip hop beats mixed with acoustic sounds, and the lyrics tell the sad story of a woman who accidentally comes across her man kissing another woman. Little S also raps in the track, and the acoustic sounds were provided by guitarist Jung Jae Pil.  Nikita commented, "It's an adventure to pursue singing at such a late age but I'm going to overcome every obstacle so that I don't become a singer that is easily forgettable." Stay tuned for the release of "Deep Kiss" on September 2nd.