Adam Blackstone is a multi-instrumentalist, songwriter, producer, and bassist. He is currently the musical director for Nicki Minaj and Justin Timberlake. Adam 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. Adam Blackstone began his career as a session musician in the Philadelphia area. He became a musical director. Blackstone was an adviser to coach Adam Levine during NBC's season one of The Voice.