Takashi Hatakeyama (畠山 貴志, Hatakeyama Takashi; born June 18, 1976), better known by his stage name Kreva, is a Japanese rapper and record producer signed with the Burger Inn Records and Pony Canyon's Knife Edge labels. He is a solo artist as well as a member of various hip hop groups, including Kick the Can Crew, By Phar the Dopest with fellow MC Cuezero, and a large ensemble of other Japanese hip hop groups in Funky Grammar Unit. His stage name is derived from the English word "clever".
Source: “Kreva (musician)”, English Wikipedia (CC BY-SA 4.0), excerpt