Puscifer is an American rock group formed in Los Angeles by Maynard James Keenan, known as the lead singer of the bands Tool and A Perfect Circle. Initially, Keenan was the only permanent member, and as such he considered the project to be his "creative subconscious". Later, frequent collaborators Mat Mitchell and Carina Round became permanent members.

Maynard James Keenan is an American singer, songwriter, philanthropist, record producer, and winemaker. He is best known as the singer and primary lyricist of the rock bands Tool, A Perfect Circle, and Puscifer.