John Peter Petrucci (born July 12, 1967) is an American guitarist, composer and producer. He is best known as a founding member of the progressive metal/rock band Dream Theater. With his former bandmate Mike Portnoy, he has produced all Dream Theater albums since their 1999 release, Metropolis Pt. 2: Scenes from a Memory until their 2009 release, Black Clouds & Silver Linings, ... Show More