Collaborations

Warren has recorded with : Lamya Al-Mughiery, Steve Alexander, Arthur Barrow, Gregg Bissonette, Sally Boyden, Dale Bozzio, Terry Bozzio, Sterling Campbell, Carl Carwell, Vinnie Colaiuta, Luis Conte, Mayko Cuccurullo, Dave DiCenso, Bruce Dukov, Jonathan Elias, Guy Farley, Madeleine Farley, Henry Ferber, Steve Ferrone, Ron Folsom, Bernard Fowler, Roy Galloway, Armen Garabedian, Berj Garabedian, Tim Garland, Melvin "Melle Mel" Glover, Nathaniel "Kidd Creole" Glover, Pamela Goldsmith, Bob Harris (Keyboardist and Trumpeter), Stan Harrison, Scott Haupert, Mark Isham, Luís Jardim, John Jones, Suzie Katayama, Howard "Eddie" Kaylan, Carol Kenyon, Michelle Kikuchi-Richards, Curtis King, Abe Laboriel, Simon Le Bon, David Logeman, Dee Long, Roddy Lorimer, Joy Lyle, Ed Mann, Tommy Mars, Eddie "Scorpio" Morris, Milton Nascimento, Maria Newman, Tessa Niles, Patrick O'Hearn, Robert O'Hearn, Lee Oskar, Paulette "Maxayn Lewis" Parker, Philip Perry, Anthony Resta, Nick Rhodes, Joseph "Grandmaster Flash" Saddler, Jake Shapiro, Talvin Singh, Sally Stapleton, John Taylor, Roger Taylor (Duran Duran drummer), Tony Thompson, John Tonks, Steve Vai, Mark "Flo" Volman, Denny Walley, Ray White, Robert "Keith Cowboy" Wiggins, Chuck Wild, Guy Todd "Rahiem" Williams, Ike Willis, Peter Wolf (Keyboardist), and Frank Zappa.