Robert Alan Diaz was an American rapper from Brooklyn born on September 17, 1975. Known professionally as Pumpkinhead, he began writing rap lyrics at age 10 after hearing the song "Nightmares" by Dana Dane. He was influenced by musicians including Redman, Doug E. Fresh, and 2Pac. Diaz reached wider visibility in 1997 with the single "Dynamic", which appeared on the compilation recording The World Famous Beat Junkies, Vol. 2 (1998). His recording career included the debut studio recording The Old Testament (2001) followed by the studio recording Orange Moon Over Brooklyn (2005). He released the studio recording Picture That: The Negative (2008) followed by the studio recording Know the Ledge (2011) under the stage name PH. Diaz collaborated with musicians including Immortal Technique and Jean Grae and performed on the track "Welcome to the Show" (2013). He released the extended play Beautiful Mind (2003) and the mixtape recordings Time Chronicles (2004) and Time Chronicles 2 (2004). Diaz died on June 9, 2015, in a New Jersey hospital. His discography included the posthumous mixtape recording #SleezbagMekalekTape (2016).
