KOGO-FM is a news/talk radio station licensed to Carlsbad, California, simulcasting KOGO 600 AM San Diego. KOGO-FM is one of the seven San Diego stations owned and operated by Clear Channel Communications.

This station has its roots as a low-power station at 95.9 MHz known as KKOS, which was previously known as KARL (a MOR station from 1965-1979) and KUPR. During this period the station had various formats, including adult contemporary, CHR, and AAA.

On September 15, 1995, the station was upgraded to full-power and moved to 95.7 MHz, and became KUPR, still keeping the AAA format. In November 1996, the station stunted by playing 10,000 country songs in a row. On March 5, 1997, the station became KMCG "Magic 95.7" with an adult R&B format.

The station was sold by Nationwide Communications to Jacor/Citicasters (later to be acquired by Clear Channel), and subsequently on October 5, 1998, it became KMSX "Mix 95.7" (meanwhile the "Magic" R&B format was moved to 92.5 XHRM). KMSX began with a hot AC format and then changed to 1980s music on November 10, 2000. On November 21, 2001, the station swapped formats and call letters with "K-Joy" 94.1 (also owned by Clear Channel), and became KJQY, playing oldies from the 1960s and 1970s. On January 3, 2002, the station became known as KOCL "Kool 95.7", until January 5, 2004, when Clear Channel moved the oldies format to 99.3 FM (which then changed on September 1, 2005 to a Spanish oldies station, "La Preciosa" XHOCL-FM). The country music format on 99.3 was moved here, and 95.7 FM became KUSS "US 95.7". The station now broadcasts in HD Radio. KUSS HD2, 95.7-2, airs classic country music. On March 20, 2008, the station was rebranded as "New Country 95.7".

Rush Hudson Limbaugh III ( /ˈlɪmbɔː/; born January 12, 1951) is an American radio talk show host and political commentator. Since he was 16 Limbaugh has worked a series of disc jockey jobs. His talk show began in 1984 at Sacramento radio station KFBK, featuring his ongoing format of political commentary and listener calls. In 1988 Limbaugh began broadcasting his show nationally from radio station WABC in New York, New York. He currently lives in West Palm Beach, Florida, from where he broadcasts the The Rush Limbaugh Show, the highest-rated talk-radio program in the United States.

In the 1990s Limbaugh's books The Way Things Ought to Be (1992) and See, I Told You So (1993) made The New York Times Best Seller list. Limbaugh frequently criticizes, in his books and on his show, what he regards as liberal policies and politicians, as well as what he perceives as a pervasive liberal bias in major U.S. media.

Rush Hudson Limbaugh III was born in Cape Girardeau, Missouri, the son of Mildred Carolyn "Millie" (née Armstrong) and Rush Hudson Limbaugh, Jr. His father was a lawyer and a U.S. fighter pilot who served in the China Burma India Theater of World War II. His mother was a native of Searcy, Arkansas. The name "Rush" was originally chosen for his grandfather to honor the maiden name of family member Edna Rush.