Lou Adler, Lou Adler is the quiet kingmaker who keeps turning Los Angeles into a hit factory. I first clock him in the late 1950s and early 1960s, steering and producing Jan & Dean, then in 1965–1967 at Dunhill guiding the Mamas & the Papas as their harmonies took over AM radio. In 1965 he helped spark The Grass Roots concept, and by 1967–1968 he was producing the Monterey Pop film, bottling that whole scene on celluloid. In 1971 he produced Carole King's "Tapestry" for Ode, and in 1971–1974 he captured Cheech & Chong's chaos on record. By 1973–1975 he was backing The Rocky Horror story from stage to screen. Lou Adler Wiki