Mike Post (born Leland Michael Postil, September 29, 1944) is an American multi Grammy and Emmy-winning composer, best known for his TV theme songs for such series as Law & Order, Law & Order: SVU, The A-Team, NYPD Blue, Renegade, The Rockford Files, L.A. Law, Quantum Leap, Magnum, P.I., and Hill Street Blues.