Lou Adler (born December 13, 1933) is a Grammy Award-winning American record producer, music executive, talent manager, songwriter, movie director, and movie producer. He produced the works of Carole King, The Mamas & the Papas and The Grass Roots. Adler was an executive producer of "The Rocky Horror Picture Show", the longest-running theatrical movie in history. He also discovered and produced comedy albums and movies for Cheech Marin and Tommy Chong.