Adam Blackstone (born December 4, 1982, in Trenton, NJ) is a multi-instrumentalist, songwriter, producer, and bassist. He is the musical director for Nicki Minaj and Justin Timberlake. Blackstone has also directed and played in performances with Jay-Z, Kanye West, Eminem, Janet Jackson, Dr. Dre, The Jonas Brothers, The Roots, Ms.Marilyn Marshall, Al Green, The Isley Brothers, Angie Stone, Mike Posner, Steve Tirpak, Al Jarreau, Maroon 5, Demi Lovato, and Jill Scott.