Kreva

Kreva (畠山 貴志, Hatakeyama Takashi, born on June 18, 1976) is a hip hop MC and record producer under 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 name is derived from the word “clever,” which, when written in katakana as クレバー, can be romanized in several ways, such as “kleba”, “kreba”, or “kreva”.

Source: http://www.last.fm/music/KREVA/+wiki