Real name: Masakazu Kageyama

Masakazu Kageyama, better known as MK, is a Japanese music producer who mainly focuses on EDM and trance. Appearing on Netherland's top dance label Armada Music after winning a remix competition for the American producer BT, Masakazu usually contributes for EXIT TUNES, mainly collaborating with Yusuke Ceo, and also produces songs alongside his long-time friend Hommarju.

Masakazu's recent vocal songs almost always exclusively features Kanae Asaba; he mostly appears on doujin labels such as Diverse System, wavforme, and SKETCH UP! Recordings. Masakazu is one of two artists behind the Polyphonix unit (who is more active there), the other being nana(Sevencolors). Both run the ADSRecordings doujin label which is geared toward EDM and dance music.