Troy Van Leeuwen born January 5 1970 is an American rock musician and producer He is best known as the guitarist for the rock band Queens of the Stone Age QOTSA for which he has served since 2002 He is also known for his work with the rock band Failure and with alternative rock supergroup A Perfect Circle as well as recordings with QOTSA members side projects such as the Desert Sessions Mondo Generator Eagles of Death Metal and the Gutter Twins Van Leeuwen created his first sideproject Enemy in 2005 Sweethead in 2008 Gone Is Gone in 2016 and toured with Iggy Pop supporting his album Post Pop Depression made with QOTSA bandmates Josh Homme and Dean Fertita