Lester Louis Adler (born December 13, 1933) is an American record and film producer and the co-owner of the Roxy Theatre in West Hollywood, California.

[1] Adler has produced and developed a number of high-profile musical artists, including The Grass Roots, Jan & Dean, The Mamas & the Papas, and Carole King.

Adler and Alpert transitioned from managing into songwriting, composing the songs "River Rock" in 1958 for Bob "Froggy" Landers and The Cough Drops and "Wonderful World" with Sam Cooke.

[14] Capitalizing on Dunhill's success, Adler sold the label to ABC in 1967 and founded Ode Records, to which he signed Carole King, Spirit, Cheech & Chong, Scott McKenzie, Peggy Lipton, and others.

In addition to work with his own label's artists, Adler produced a number of live albums for Johnny Rivers.

[8] The movie remains a cult hit, and in 2000 Adler and Cheech Marin recorded a commentary track for the DVD release.

His 1981 film, Ladies and Gentlemen, The Fabulous Stains,[8] did not make a large impact upon release but has enjoyed a long life on cable TV broadcasts.

[21] Adler often sat courtside next to Dyan Cannon and Jack Nicholson at Los Angeles Lakers home games.

[22] He owns The Roxy Theatre with his son Nic, who operates the historic music venue on the Sunset Strip in West Hollywood, California.