A Perfect Circle is a rock band conceived by Billy Howerdel, a former guitar technician for David Bowie, Guns N' Roses, Nine Inch Nails, The Smashing Pumpkins, Fishbone and Tool. Howerdel met singer Maynard James Keenan in 1992 when Fishbone was opening for Tool, and the two became friends. Three years later, Keenan offered Howerdel, who was looking for lodging, a room in his North Hollywood home. This provided Howerdel the opportunity to play demos of his music for Keenan. Pleased with what he heard, Keenan remarked, "I can hear myself singing .

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