John Peter Petrucci (born July 12, 1967) is an American guitarist and songwriter best known as a founding member of the progressive metal band Dream Theater. Along with his former bandmate Mike Portnoy, he has produced all Dream Theater albums since their 1999 release, Metropolis Pt. 2: Scenes from a Memory. He is also a backing vocalist for Dream Theater. Petrucci was named as the third player on the G3 tour six times, more than any other invited guitarists. In 2009 he was named the No. 2 best metal guitarist (behind Dave Mustaine) by Joel McIver in his book The 100 Greatest Metal Guitarists. He was also named as one of the "Top 10 Greatest Guitar Shredders of All Time" by GuitarOne magazine.