James William Guercio is an American music producer, musician, songwriter and director. He is best known for his work as the producer of Chicago's first eleven albums. He also produced the early recordings of The Buckinghams and Blood, Sweat & Tears. In the mid-1970s, he managed the Beach Boys and was a member of their backing band. Guercio has also worked in the motion picture industry as a producer and director. He is married to the former model Lucy Angle. From Wikipedia →