A Perfect Circle is a progressive rock band, formed by guitarist Billy Howerdel. Howerdel had worked as a guitar tech for bands such as Nine Inch Nails, The Smashing Pumpkins, Fishbone, Guns N' Roses and Tool. During the recording of Tool's Ænima album, he played demos of his music to Tool's singer, Maynard James Keenan, who, although Howerdel originally wanted a female singer, offered himself as vocalist should Howerdel form a band. To separate his appearance from Tool, Keenan wears a long wig on his otherwise bald scalp at all A Perfect Circle live appearances, photo shoots and music videos ... (read more )