MJ Keenan is a Grammy award-winning vocalist for the internationally revered music acts Tool, A Perfect Circle, and the multimedia cabaret troupe Puscifer. Keenan, a veteran of the U.S. Army, is the winemaker and owner of Caduceus Cellars and Merkin Vineyards, with 110 acres under vine throughout the state. He is the owner, winemaker, and founder of the Arizona based wine makers Co-Op – Four Eight Wineworks, and a founding board member of the Arizona Vignerons Alliance, a quality control and winegrowers data collection collective. He has been a participating member of the Arizona Winegrowers Association since 2009. Keenan, 54, was born in Ohio, and grew up in West Michigan working in and on the local orchards and farms. He has lived in Jerome, Arizona since 1995, has two children, and runs his multiple business’ with the indispensable help of his wife Jennifer Lei Li Keenan.