KLAC (570 AM) is a commercial sports radio station licensed to Los Angeles, California, serving Greater Los Angeles. Owned by a joint venture between iHeartMedia, Inc. and the Los Angeles Dodgers baseball club, KLAC serves as the Los Angeles affiliate for Fox Sports Radio; the flagship station for the Los Angeles Dodgers Radio Network and the Los Angeles Clippers; and the home of radio personalities Fred Roggin, Rodney Peete, Petros Papadakis and Matt "Money" Smith.

The KLAC studios are located in the Los Angeles suburb of Burbank, while the station transmitter resides in Los Angeles' Lincoln Heights neighborhood. Besides its main analog transmission, KLAC simulcasts over a HD digital subchannel of KYSR, and streams online via iHeartRadio.

KLAC first signed on in 1924 as KFPG. In 1925, it became KMTR, with the call sign chosen for the new owner, K. M. Turner, a radio dealer. In the 1930s, it transmitted with 1,000 watts and had its studios at 915 North Formosa Street.

In 1946, Dorothy Schiff, publisher of the New York Post, bought the station and renamed it KLAC, for Los Angeles, California. During the 1940s, Douglas Adamson worked as a disc jockey on KLAC and was voted one of Billboard magazine's top ten DJs in America. Al Jarvis created his West Coast version of the Make Believe Ballroom; in a KLAC advertisement in the 1947 edition of Broadcasting Yearbook, Jarvis is described as "the dean of the nation's disc jockeys" and the show promised to give away "a new Mercury, diamond rings, etc."

KLAC added a TV station, KLAC-TV at channel 13, on September 17, 1948. Both the radio and TV operations were housed in studios at 1000 North Cahuenga Boulevard in Hollywood. Al Jarvis notably hosted a TV edition of the Make Believe Ballroom, and a young Betty White was part of his staff, Regis Philbin and Leonard Nimoy also worked behind the scenes at the station. KLAC-TV was sold to the Copley Press in 1953, and was renamed KCOP-TV.

Also in 1948, KLAC-FM began experimenting with FM broadcasts. The station official signed on the air on March 7, 1961, as KLAC-FM. It mostly simulcast the AM station. In the late 1960s, it began airing its own programming, a vocal easy listening/MOR sound. In 1975, the station was sold to Combined Communications, later becoming KIIS-FM.

KLAC and KLAC-FM were purchased by Metromedia in 1963. Metromedia programmed a full service middle of the road (MOR) format of popular music, news and sports, similar to other Metromedia stations such as WNEW in New York City and WHK in Cleveland. KLAC and KLAC-FM at different times featured the talents of Les Crane, Louis Nye, and Lohman and Barkley. Metromedia also owned KTTV (channel 11), and all three stations were housed in studios at Metromedia Square on Sunset Boulevard.

In the mid-1960s, KLAC switched to a talk radio format known as "Two-Way Radio". Hosts included Joe Pyne. In the 1970s, KLAC switched to an adult standards format, playing music from the 1940s and early 1950s, along with soft adult contemporary hits of the 1950s and 1960s. By early 1970, KLAC evolved to more of a full-service mainstream adult contemporary format focusing on popular adult hits from 1964 up to that time.