It is owned by the Lutheran Church – Missouri Synod and airs a simulcast of station KFUO's daytime signal and nighttime live stream.
[4] Later, it was the Mutual Broadcasting System affiliate in St. Louis until August 1969, when the station switched from adult standards to an R&B format that featured Bill Bailey, Bernie Hayes, and Don Sainte-Johnn.
KWK's claim to national fame was a film clip in which a disc jockey at the station is seen smashing one of Elvis Presley's records and declaring "Rock and roll has got to go!"
Programming on "Straight Talk" included Steve & DC in mornings (simulcast with WKBQ-FM), The Fabulous Sports Babe, Ken Hamblin, Tom Leykis, and Jim Bohannon.
On February 22, 1995, the station changed its call sign to KRAM, shortly after the Los Angeles Rams football team announced that they would relocate to St. Louis.
Having low advertising revenues, the station switched to a satellite-run Southern Gospel format as KSLG in November 1999.
This resulted in the return of the syndicated "Jim Rome Show" to the St. Louis market after an absence of approximately a year.
[6] On June 20, 2012, KSLG changed its call sign to KXFN with the FN referring to "Fan," similar to now co-owned KFNS.
[13] On October 1, 2014, KXFN changed to a music/talk format with multiple styles of shows, offering music of different genres as well as comedy talk content.
[14] By that December, TalkSTL.com's parent company, Markel Radio Group, bought and began programming KFNS, which had fallen silent the previous November after "Grand Slam Sports" went into bankruptcy.
[17] On November 14, 2019, the station was sold to Immaculate Heart Media, Inc., and adopted Relevant Radio's Spanish language programming.