Billy Howerdel is the founding member, guitarist, songwriter, and producer for the band A Perfect Circle. He was born in New Jersey. Before forming A Perfect Circle, Howerdel worked as a guitar tech for Faith No More, Fishbone, David Bowie, The Smashing Pumpkins, Nine Inch Nails, Queen, Guns N' Roses, and numerous other bands. Howerdel functioned as a guitar technician for Tool during the tour and recording of Ænima, working with Maynard James Keenan, whom he met in 1992. Wikipedia
The definitive Wikipedia entry for Billy Howerdel. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Billy_Howerdel
Co-founded music group A Perfect Circle with Maynard James Keenan, singer and songwriter for Tool. [1998] Met Maynard James Keenan (vocalist and lyricist: Tool and A Perfect Circle) while working as a guitar technician for the band Tool. Lead guitarist in www.imdb.com/name/nm0398111/